(n) :
any one of the simplest chemical substances that cannot be decomposed in a chemical reaction or by any chemical means and made up of atoms all having the same number of protons; one of the four basic building blocks of matter in theories of ancient philosophers and alchemists: water, earth, fire, and air
(n) :
any one of the simplest chemical substances that cannot be decomposed in a chemical reaction or by any chemical means and made up of atoms all having the same number of protons; one of the four basic building blocks of matter in theories of ancient philosophers and alchemists: water, earth, fire, and air