car
[noun]
a road vehicle that has four wheels, an engine, and a small number of seats for people
DNA
[noun]
(biochemistry) a chemical substance that carries the genetic information, which is present in every cell and some viruses
electricity
[noun]
a form of energy that is carried by wires, cables, etc. and is used for lighting, heating, driving machines, etc.
evolution
[noun]
(biology) the slow and gradual development of living things throughout the history of the earth
gravity
[noun]
(physics) the universal force of attraction between any pair of objects with mass
the Internet
[noun]
a global computer network that allows users around the world to communicate with each other and exchange information
microscope
[noun]
an instrument that makes looking at tiny objects or organisms possible by enlarging them which is useful in scientific studies
nuclear power
[noun]
a type of energy generated by splitting atoms to release their stored energy
penicillin
[noun]
any of variation of antibiotics obtained from Penicillium moulds and used to treat or prevent a wide range of bacterial infections
printing
[noun]
the act of reproducing something by pressing an ink-covered surface against paper
telephone
[noun]
a communication device used for talking to people who are far away and also have a similar device
telescope
[noun]
a piece of equipment by which the far objects are made visible, especially in space
television
[noun]
an electronic device with a screen that receives television signals, on which we can watch programs
wheel
[noun]
a round object attached to a vehicle from its center, which allows a person can move the vehicle in different directions
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