💻 Topic packs · 292 words
Technology & Science Vocabulary List: 292 Words with Definitions
Devices, software, data, research methods and scientific reasoning. This is the Technology & Science topic pack inside Word Hype, spanning A1 to C2 and a core ingredient of the TOEFL pool.
| Word | Definition | Play |
|---|---|---|
| Absorb | To take in liquid, heat, or another substance. | Play ▶ |
| Abstract | About ideas rather than things you can touch. | Play ▶ |
| Academic | Related to schools, universities, or study. | Play ▶ |
| Accurate | Correct and free from mistakes. | Play ▶ |
| Adjust | Change something slightly so that it works or fits better. | Play ▶ |
| Alloy | A material made by mixing a metal with other elements. | Play ▶ |
| Alpha | The first letter used in ancient Greek writing. | Play ▶ |
| Alter | To change something. | Play ▶ |
| Ambiguous | Having more than one possible meaning. | Play ▶ |
| Analogy | A comparison that explains one thing by showing how it is like another. | Play ▶ |
| Ancestor | A family member who lived before your grandparents. | Play ▶ |
| Animal | A living creature such as a dog, cat, or bird. | Play ▶ |
| Anomaly | Something that does not fit the usual pattern. | Play ▶ |
| Apparent | Easy to see or understand. | Play ▶ |
| Append | To add something to the end of a text or list. | Play ▶ |
| Arbitrary | Chosen without a clear reason or fair rule. | Play ▶ |
| Archive | A collection of old records kept for future use. | Play ▶ |
| Aspect | One part of a situation or subject. | Play ▶ |
| Assemble | To put separate parts together to make something. | Play ▶ |
| Atomic | Related to the tiny units that make up chemical elements. | Play ▶ |
| Attribute | A quality or feature of a person or thing. | Play ▶ |
| Backup | An accumulation caused by clogging or a stoppage.Someone who takes the place of another (as when things get dangerous or difficult). | Play ▶ |
| Battery | A small thing that gives power to a phone or toy. | Play ▶ |
| Bias | An unfair preference for one person or side. | Play ▶ |
| Bloom | A flower on a plant.To produce flowers. | Play ▶ |
| Branch | A part of a tree growing out from the trunk.A division of a business or organization. | Play ▶ |
| Buffer | Something that reduces the effect of a shock or conflict. | Play ▶ |
| Button | A small disk or knob sewn on to a garment.A small device pressed to operate a machine. | Play ▶ |
| Cable | A long thin wire for power or the internet. | Play ▶ |
| Camera | A tool that takes pictures. | Play ▶ |
| Carbon | A chemical element found in every living thing. | Play ▶ |
| Category | A group of things with shared features. | Play ▶ |
| Cattle | Farm animals such as cows and bulls considered as a group. | Play ▶ |
| Cause | The reason something happens. | Play ▶ |
| Cement | A powder mixed with water to help make concrete. | Play ▶ |
| Chaos | A state of complete confusion and disorder. | Play ▶ |
| Charger | A small device that gives power to your phone. | Play ▶ |
| Chart | A visual display of information.A map designed to assist navigation by air or sea. | Play ▶ |
| Chrome | A shiny metal coating used to protect and decorate objects. | Play ▶ |
| Circuit | A complete path through which electricity can flow. | Play ▶ |
| Cited | Mentioned as an example or source. | Play ▶ |
| Clarify | To explain something so it is easier to understand. | Play ▶ |
| Climate | The usual weather in a place over many years. | Play ▶ |
| Cobalt | A hard, silver-grey metal used in batteries and strong metal mixtures. | Play ▶ |
| Cognitive | Related to thinking, learning, and remembering. | Play ▶ |
| Coherent | Clear and easy to understand because the parts fit together. | Play ▶ |
| Coincide | To happen at the same time. | Play ▶ |
| Colony | A country or area controlled by another country.A group of animals or insects living together. | Play ▶ |
| Column | A tall, solid post used to support a building.A line of text in a newspaper or magazine. | Play ▶ |
| Complex | Having many connected parts that are hard to understand. | Play ▶ |
| Comprise | To have particular parts that together form a whole. | Play ▶ |
| Computer | A machine for work, games, and the internet. | Play ▶ |
| Concrete | A building material made from cement, sand, stones, and water. | Play ▶ |
| Confirm | To show that something is true or correct. | Play ▶ |
| Context | The situation that helps explain an event or idea. | Play ▶ |
| Convert | To change something into a different form or use. | Play ▶ |
| Copper | A reddish-brown metal used for making wires and coins.A small brown coin. | Play ▶ |
| Criteria | Standards used to judge or choose something. | Play ▶ |
| Crystal | A solid whose particles are arranged in a regular pattern. | Play ▶ |
| Debris | Broken pieces left after something is damaged or destroyed. | Play ▶ |
| Deduce | To work out what must be true from known facts. | Play ▶ |
| Define | To explain exactly what a word means.To show what something is. | Play ▶ |
| Degree | A unit used to measure temperature or angles.A certificate you get when you finish university. | Play ▶ |
| Delete | To erase or remove something.To remove words or files from a computer. | Play ▶ |
| Delta | Land shaped like a triangle where a river meets the sea.The fourth letter of the Greek alphabet. | Play ▶ |
| Denote | To stand for or mean something. | Play ▶ |
| Deploy | To send people or equipment where they are needed. | Play ▶ |
| Derive | To get something from a particular source. | Play ▶ |
| Detect | To discover something that is hidden or hard to notice. | Play ▶ |
| Deviate | To move away from a planned route or course. | Play ▶ |
| Device | A machine or tool made for a special use.A phone, tablet, or computer. | Play ▶ |
| Diesel | A type of fuel used in many trucks and buses. | Play ▶ |
| Digital | Using electronic technology to store or process information. | Play ▶ |
| Diminish | To make or become smaller or less important. | Play ▶ |
| Discrete | Separate and clearly different from other things. | Play ▶ |
| Distinct | Clearly different from something else. | Play ▶ |
| Diverse | Including many different types. | Play ▶ |
| Domain | An area controlled by a ruler or government.A specific area of knowledge or work. | Play ▶ |
| Ductile | Able to be stretched into thin wire without breaking. | Play ▶ |
| Durable | Strong enough to last a long time without damage. | Play ▶ |
| Dynamic | Full of energy and new ideas. | Play ▶ |
| Earth | The planet on which we live.The soil or dirt on the ground. | Play ▶ |
| Earthy | Looking or smelling like dirt or soil.Simple, natural, and honest. | Play ▶ |
| Effect | A change that happens because of something else.The result of an action. | Play ▶ |
| Efficacy | The ability to produce the intended result. | Play ▶ |
| Elect | To choose someone by voting. | Play ▶ |
| Element | One part of something larger. | Play ▶ |
| Elements | The separate parts that make up a whole. | Play ▶ |
| A message you send with a computer. | Play ▶ | |
| Emerge | To come out of a place where you could not be seen. | Play ▶ |
| Empirical | Based on what is observed or tested. | Play ▶ |
| Emulate | To try to match someone's success by following their example. | Play ▶ |
| Enable | To make someone able to do something. | Play ▶ |
| Energy | The power you need to do things and be active.Power from electricity, gas, or the sun. | Play ▶ |
| Engine | A machine with moving parts that converts power into motion.A thing that is the agent or instrument of a particular process. | Play ▶ |
| Entity | Something that exists as a separate thing. | Play ▶ |
| Equation | A mathematical statement showing that two amounts are equal. | Play ▶ |
| Erode | To slowly wear away rock or soil through water or wind. | Play ▶ |
| Ethical | Related to ideas about right and wrong. | Play ▶ |
| Ethics | Ideas about what is right and wrong behavior.The study of right and wrong. | Play ▶ |
| Evident | Easy to see or understand. | Play ▶ |
| Evolve | To develop and change gradually over time. | Play ▶ |
| Examine | To look at something carefully.To test someone's knowledge or health. | Play ▶ |
| Exhaust | To make someone extremely tired. | Play ▶ |
| Explicit | Stated clearly and directly. | Play ▶ |
| External | On the outside of something. | Play ▶ |
| Extinct | Having no living members left, as a species. | Play ▶ |
| Extract | To pull or take something out. | Play ▶ |
| Factor | One of the things that causes something to happen.A number that divides into another number smoothly. | Play ▶ |
| Fallacy | An idea that seems true but is based on faulty thinking. | Play ▶ |
| Feature | An important or noticeable part of something. | Play ▶ |
| Ferric | Describing iron with three positive electrical charges. | Play ▶ |
| Fibers | Thin threads that make up cloth or other materials. | Play ▶ |
| Field | An open area of land used for crops or animals. | Play ▶ |
| Fields | Areas of land used for growing crops or keeping animals.Areas of land covered in grass. | Play ▶ |
| Finite | Having an end or limit. | Play ▶ |
| Flange | A raised edge that helps join a pipe or part to another. | Play ▶ |
| Fluids | Substances that can flow, such as liquids and gases. | Play ▶ |
| Focus | To give all your attention to one thing.The main point of interest. | Play ▶ |
| Foggy | When there is a lot of thick cloud near the ground making it hard to see.Not clear or confused. | Play ▶ |
| Formulate | To develop a plan or idea carefully. | Play ▶ |
| Fossil | The shape of an old bone or plant kept in rock.An old-fashioned or outdated person. | Play ▶ |
| Fraction | A number that represents part of a whole. | Play ▶ |
| Friction | The force that resists movement when surfaces rub together. | Play ▶ |
| Fundamental | Forming the most important or basic part of something. | Play ▶ |
| Fusion | The joining of different things to form one. | Play ▶ |
| Gadget | A small tool or machine. | Play ▶ |
| Galaxy | A huge group of stars in space. | Play ▶ |
| Gauges | Instruments that measure quantities such as pressure or temperature. | Play ▶ |
| Generic | Related to a whole group rather than one particular member. | Play ▶ |
| Gradual | Happening slowly in small stages. | Play ▶ |
| Graphs | Pictures that show how numbers or amounts are related. | Play ▶ |
| Gravity | The force that pulls things toward the earth. | Play ▶ |
| Growth | The process of getting bigger or older. | Play ▶ |
| Habitat | The natural place where an animal or plant lives. | Play ▶ |
| Hazard | Something that could cause harm. | Play ▶ |
| Headphones | Two small speakers that go on your ears. | Play ▶ |
| Humans | People, including adults and children. | Play ▶ |
| Hybrid | A mix of two different things. | Play ▶ |
| Hyphen | The punctuation mark used to join words, as in well-known. | Play ▶ |
| Hypothesis | A possible explanation that can be tested. | Play ▶ |
| Icecap | A thick layer of ice covering an area of land. | Play ▶ |
| Identical | Exactly the same. | Play ▶ |
| Immerse | To put something completely under a liquid. | Play ▶ |
| Immune | Protected against a particular disease. | Play ▶ |
| Impact | The strong effect that something has. | Play ▶ |
| Implicit | Understood even though it is not stated directly. | Play ▶ |
| Imply | To suggest something without saying it directly. | Play ▶ |
| Infant | A baby or very young child. | Play ▶ |
| Infer | To reach an idea from evidence rather than a direct statement. | Play ▶ |
| Infinite | Having no end or limit. | Play ▶ |
| Inherent | Existing as a natural part of something. | Play ▶ |
| Inhibit | To slow down or prevent a process. | Play ▶ |
| Innovate | To introduce new ideas or methods. | Play ▶ |
| Inputs | Things put into a system to make it work. | Play ▶ |
| Inquiry | A request for information. | Play ▶ |
| Insect | A small bug with six legs, like an ant or a fly. | Play ▶ |
| Insert | To put something inside something else. | Play ▶ |
| Insight | A clear and deep understanding of something. | Play ▶ |
| Inspect | To look at something carefully to check its condition. | Play ▶ |
| Install | To put a machine or computer program in so it is ready to use. | Play ▶ |
| Instance | One example of a particular thing. | Play ▶ |
| Integrate | To combine separate parts into one working whole. | Play ▶ |
| Interact | To communicate or do things with other people. | Play ▶ |
| Internal | Inside something. | Play ▶ |
| Internet | The network that connects computers around the world. | Play ▶ |
| Interpret | To explain the meaning of something. | Play ▶ |
| Interval | A period of time between two events. | Play ▶ |
| Intrinsic | Belonging to something's essential nature. | Play ▶ |
| Intuition | A feeling that something is true without conscious reasoning. | Play ▶ |
| Inverse | Opposite in position, order, or effect. | Play ▶ |
| Ionize | To give an atom an electrical charge by adding or removing electrons. | Play ▶ |
| Isolate | To separate someone or something from others. | Play ▶ |
| Journal | A personal written record of experiences and thoughts. | Play ▶ |
| Junction | A place where roads or railway lines meet. | Play ▶ |
| Kernel | A softer, usually edible part of a nut or seed.The central or most important part of something. | Play ▶ |
| Keyboard | A flat board with letters that you press. | Play ▶ |
| Kinetic | Related to movement. | Play ▶ |
| Laptop | A small computer you can carry. | Play ▶ |
| Latent | Present but not yet active or visible. | Play ▶ |
| Launch | To start a new business, product, or activity. | Play ▶ |
| Liquid | A substance that flows freely but is of constant volume.Having a clear, pure, and flowing sound. | Play ▶ |
| Logic | A way of thinking that follows clear reasons. | Play ▶ |
| Logical | Following clear and reasonable steps of thought. | Play ▶ |
| Machine | A thing with moving parts that does work. | Play ▶ |
| Magnet | An object that pulls iron and some other metals toward it. | Play ▶ |
| Magnify | To make something appear larger. | Play ▶ |
| Matrix | A set of numbers or items arranged in rows and columns. | Play ▶ |
| Message | Words you send to another person. | Play ▶ |
| Method | A particular way of doing something. | Play ▶ |
| Metric | Using metres, grams, and litres to measure things. | Play ▶ |
| Mitigate | To make something harmful less severe. | Play ▶ |
| Multiple | Involving more than one. | Play ▶ |
| Nature | The physical world including plants, animals, and landscapes.The basic qualities or character of a person or thing. | Play ▶ |
| Negate | To make something have no effect. | Play ▶ |
| Neural | Relating to nerves or the nervous system. | Play ▶ |
| Neutral | Not supporting either side in a disagreement. | Play ▶ |
| Nickel | A silver-coloured metal used in coins and batteries. | Play ▶ |
| Object | A thing that you can see or touch. | Play ▶ |
| Occur | Happen or take place as an event. | Play ▶ |
| Orbit | The path of a planet or moon around another object in space. | Play ▶ |
| Organ | A part of the body with a particular job, such as the heart. | Play ▶ |
| Origin | The place or time where something begins. | Play ▶ |
| Oxygen | A colorless gas needed by humans and animals for breathing. | Play ▶ |
| Packet | A small bag or wrapped container of goods. | Play ▶ |
| Parallel | Describing lines that remain the same distance apart and never meet. | Play ▶ |
| Parameter | A limit or condition that shapes what can be done. | Play ▶ |
| Password | A secret word that lets you open an account. | Play ▶ |
| Perceive | To notice something through your senses. | Play ▶ |
| Phase | One stage in a process of change. | Play ▶ |
| Phenomenon | Something that happens and can be observed or studied. | Play ▶ |
| Phone | A device used to talk to people far away.To call someone on a mobile or landline. | Play ▶ |
| Photo | A picture made with a camera. | Play ▶ |
| Planet | A large round object that moves around a star. | Play ▶ |
| Plant | A living thing such as a flower or tree. | Play ▶ |
| Plasma | The liquid part of blood that carries blood cells. | Play ▶ |
| Poison | Something that makes you very sick or kills you if eaten.To put a harmful substance in food or drink. | Play ▶ |
| Powder | A dry substance made of very small pieces. | Play ▶ |
| Precede | To come before something in time or order. | Play ▶ |
| Precise | Exact and accurate. | Play ▶ |
| Predict | To say what you think will happen in the future. | Play ▶ |
| Prevalent | Common in a particular place or group. | Play ▶ |
| Printer | A machine that puts words on paper. | Play ▶ |
| Proof | Facts or information that show something is true. | Play ▶ |
| Protocol | An agreed set of rules for an official activity. | Play ▶ |
| Psychology | The scientific study of the mind and behaviour. | Play ▶ |
| Pulse | The regular beat you can feel as your heart pumps blood. | Play ▶ |
| Quantity | The amount or number of something. | Play ▶ |
| Quartz | A hard mineral found in many kinds of rock. | Play ▶ |
| Radar | A system that uses radio waves to find distant objects. | Play ▶ |
| Radio | A device that plays music and news. | Play ▶ |
| Radius | The distance from the centre of a circle to its edge. | Play ▶ |
| Random | Happening without a clear plan or pattern. | Play ▶ |
| Ratio | A comparison showing the relative sizes of two amounts. | Play ▶ |
| Rational | Based on reason and clear thinking. | Play ▶ |
| Remainder | What is left after the rest is taken away or used. | Play ▶ |
| Reproduce | To make a copy of something. | Play ▶ |
| Reverse | To change something to the opposite direction or state. | Play ▶ |
| Rigid | Stiff and unable to bend easily. | Play ▶ |
| Rigorous | Very careful and thorough. | Play ▶ |
| Robot | A machine that can move and do work. | Play ▶ |
| Rocket | A vehicle that flies into space.To move up very quickly. | Play ▶ |
| Sample | A small part chosen to represent a larger whole. | Play ▶ |
| Scope | The range of subjects or activities something covers. | Play ▶ |
| Screen | The flat part of a TV or phone that shows pictures. | Play ▶ |
| Segment | One part of something that is divided. | Play ▶ |
| Semantic | Related to the meaning of words or signs. | Play ▶ |
| Sequence | The order in which things follow one another. | Play ▶ |
| Server | A person who brings food and drinks to customers. | Play ▶ |
| Shadow | A dark shape made when something blocks the light. | Play ▶ |
| Signal | A sound, light, or action that sends a message. | Play ▶ |
| Simulate | To copy a real situation for practice or study. | Play ▶ |
| Solar | Related to the sun. | Play ▶ |
| Source | A place, person, or thing from which something comes or can be obtained.Obtain from a particular place. | Play ▶ |
| Space | An empty area where something can fit. | Play ▶ |
| Speaker | A device that gives out sound and music. | Play ▶ |
| Specific | Exact and clearly identified. | Play ▶ |
| Spectrum | A wide range of related ideas, values, or things. | Play ▶ |
| Stability | The ability to stay steady and avoid sudden change. | Play ▶ |
| Stable | A farm building for housing horses or other livestock.Firm and dependable; subject to little fluctuation. | Play ▶ |
| Static | Staying the same without moving or changing. | Play ▶ |
| Statistics | Numbers collected to give information about something. | Play ▶ |
| Steam | The hot vapor produced when water is heated. | Play ▶ |
| Steel | A strong alloy made mainly from iron and a small amount of carbon. | Play ▶ |
| Structure | The way the parts of something are arranged. | Play ▶ |
| Survey | A set of questions used to find out people's opinions or habits. | Play ▶ |
| Synthesis | The process of combining separate ideas into a whole. | Play ▶ |
| System | A set of connected parts working together. | Play ▶ |
| Tablet | A flat computer with a touch screen. | Play ▶ |
| Tendency | A usual way someone behaves or something develops. | Play ▶ |
| Theory | An explanation based on ideas and evidence. | Play ▶ |
| Thesis | A long piece of research writing for a university degree. | Play ▶ |
| Toxicity | The degree to which a substance is poisonous. | Play ▶ |
| Transform | To change the form or appearance of something greatly. | Play ▶ |
| Transmit | To send a signal or message from one place to another. | Play ▶ |
| Undergo | To experience a process, change, or treatment. | Play ▶ |
| Underlie | To be the basic cause or reason for something. | Play ▶ |
| Uniform | Clothes worn by members of the same group. | Play ▶ |
| Unlock | To open something using a key or code. | Play ▶ |
| Update | To add the latest information or improvements to something. | Play ▶ |
| Usable | Ready and suitable to be used. | Play ▶ |
| Vacuum | A space with no matter, or almost no air, in it. | Play ▶ |
| Validate | To show that something is sound or correct. | Play ▶ |
| Variable | Likely or able to change. | Play ▶ |
| Velocity | The speed of movement in a particular direction. | Play ▶ |
| Verify | To check that something is true or accurate. | Play ▶ |
| Vertical | Pointing straight up and down. | Play ▶ |
| Video | Moving pictures with sound that you can watch. | Play ▶ |
| Virtual | Created by computers to appear like a real place or experience. | Play ▶ |
| Visible | Able to be seen. | Play ▶ |
| Volume | The amount of space something contains or fills. | Play ▶ |
| Website | A page or group of pages on the internet. | Play ▶ |