relating to chemistry. distinct compound or substance.

each of upper and lower folds of skin which cover eye. The skin that covers the eyes when you close them.

To give someone a shock or surprise.

expressive. what is meant by word, text, etc.. To have a particular intention or value.

Being different from or unrelated to another. individual items of clothing suitable for wearing in different combinations. To move things away from each other.

An object that can be used to hold things.

in state of sleep. fact or state of being asleep. To rest your body in bed, as at night time.

device for examining, reading, or monitoring something. Machines that copies, reads, or records data.

small arthropod animal that has six legs and generally one or two pairs of wings. Small animals with 6 legs, such as bees or ants.

action of observing carefully. Practices of performing actions required by rules.

person who is studying or has expert knowledge of one or more of natural or physical sciences. People who are trained in a science.

In a way almost the same as something else.

group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. Subsections of a genus (of plants, animals).

alkaloid compound which is found in tea and coffee plants.

conducting oneself in specified way. To act correctly.