Browse Lemmas

Lemmas found: 7607

Add New Lemma
Clear
propeller

A rotating device with blades that produces thrust to move an aircraft, ship, or other vehicle through air or water.

Noun vehicle Level 1040
proprietary

Owned by a person or company, especially because it has been developed privately and is protected by legal rights; not freely available for others to ...

Adjective legal Level 1040
propulsion

The act or process of driving or pushing something forward, especially a vehicle or aircraft.

Noun process_event Level 1040
prostitution

The practice or occupation of engaging in sexual activity with clients in exchange for money or other payment.

Noun activity Level 1040
prototype

An original model or first version of something from which later versions are developed.

Noun artwork_artifact Level 1040
racing

The activity or sport of competing in races, especially involving vehicles, animals, or people.

Noun activity Level 1040
recycling

The process of collecting and treating used materials so they can be made into new products.

Noun process_event Level 1040
refrigeration

The process of cooling something and keeping it cold, especially by using a refrigerator or mechanical cooling system.

Noun process_event Level 1040
robot

A machine, often resembling a human, that can perform tasks automatically or be controlled remotely.

Noun electronic_device Level 1040
roller

A cylindrical device that rotates and is used to flatten, press, shape, move, or spread something.

Noun tool Level 1040
rotary

Turning around a central axis; rotating.

Adjective physical_property Level 1040
rotor

A rotating part of a machine or device, especially the part that turns around a central axis.

Noun technology_digital Level 1040
runner

A person who runs, especially as a sport or regular activity.

Noun human Level 1040
scan

To examine something quickly or systematically, often by looking over it or using a device, in order to find information or detect something.

Verb perception Level 1040
scanner

A device that converts printed or photographic material into a digital image or file.

Noun electronic_device Level 1040
sensor

A device that detects and measures a physical property or change, such as temperature, light, motion, pressure, or sound, and sends a signal to a cont...

Noun electronic_device Level 1040
sewer

An underground pipe or passage that carries away wastewater and sewage.

Noun building_structure Level 1040
shaft

A long, narrow stem or rod that forms the main part of a tool, weapon, or mechanical device.

Noun tool Level 1040
shaft

A vertical passage or enclosed space in a building, mine, or underground structure, especially for elevators, ventilation, or access.

Noun building_structure Level 1040
shuttle

A vehicle that travels regularly between two places, especially carrying passengers back and forth.

Noun vehicle Level 1040
sling

A flexible strap, bandage, or supporting device used to hold an injured arm or shoulder in position.

Noun tool Level 1040
slot

A narrow opening or groove, especially one for inserting something.

Noun building_part Level 1040
smartphone

A mobile phone with advanced computer-like functions, such as internet access, apps, email, and a touchscreen.

Noun electronic_device Level 1040
socket

A hollow device or fitting designed to receive and hold something, especially the base of a light bulb.

Noun small_movable_object Level 1040
solder

To join metal parts by melting solder between them.

Verb creation_action Level 1040
solder

A low-melting alloy used to join metal parts, usually applied in a molten state.

Noun material_substance Level 1040
spaceflight

Travel or flight through outer space, especially by spacecraft.

Noun activity Level 1040
standardization

The process of making something conform to an established standard or set of standards.

Noun process_event Level 1040
takeoff

The act of leaving the ground and beginning to fly, especially by an aircraft.

Noun process_event Level 1040
tofu

A soft, usually white food made by coagulating soy milk and pressing the curds into blocks; soybean curd.

Noun food Level 1040
toilet

A bowl-shaped plumbing fixture used for urinating and defecating, usually with a seat and a flushing mechanism.

Noun appliance Level 1040
topology

The arrangement and connectivity of parts in a network, system, or structure, especially the pattern of connections between its components.

Noun technology_digital Level 1040
torpedo

A self-propelled underwater weapon designed to strike ships or submarines.

Noun weapon Level 1040
transformer

An electrical device that changes the voltage of alternating current, usually by increasing or decreasing it.

Noun electronic_device Level 1040
transgender

Describing a person whose gender identity differs from the sex they were assigned at birth.

Adjective biological_type Level 1040
transistor

A small semiconductor device that controls or amplifies electrical current and is used in electronic circuits.

Noun electronic_device Level 1040
transmitter

A device that sends out radio, television, or other electromagnetic signals.

Noun electronic_device Level 1040
turbine

A machine with blades or vanes that rotates when a moving fluid such as water, steam, wind, or gas passes through it, often to generate power.

Noun appliance Level 1040
turbine

A rotary engine or component that extracts energy from a moving fluid and converts it into mechanical power, especially in an aircraft or power plant.

Noun vehicle Level 1040
warp

To bend, twist, or distort out of its original shape, especially because of heat, moisture, or uneven tension.

Verb change Level 1040
wastewater

Used water discharged from homes, businesses, or industrial processes, often containing waste and requiring treatment before reuse or release.

Noun material_substance Level 1040
waveguide

A hollow metal or dielectric structure that guides electromagnetic waves, especially microwaves, from one point to another.

Noun technology_digital Level 1040
weaving

The act or process of making fabric by interlacing threads at right angles.

Noun activity Level 1040
wedge

A piece of material, usually triangular or tapered, used to force things apart, hold them in position, or split them.

Noun tool Level 1040
welding

The process of joining pieces of metal or other materials by melting their edges together, often with heat, pressure, or both.

Noun process_event Level 1040
wheelchair

A chair mounted on wheels, designed to be pushed or driven by a person who cannot walk or has difficulty walking.

Noun vehicle Level 1040
wiring

A system of wires used to carry electricity or electrical signals, especially in a building, vehicle, or device.

Noun technology_digital Level 1040
workpiece

A piece of material or object being worked on, shaped, cut, assembled, or otherwise processed, especially in manufacturing or craft.

Noun small_movable_object Level 1040
acceleration

The rate at which the velocity of an object changes with time; speeding up, slowing down, or changing direction.

Noun process_event Level 1050
accretion

The gradual growth or increase of something by the addition of new material or parts.

Noun process_event Level 1050