element in Polish

(set theory) One of the objects in a set.

(set theory) One of the objects in a set.

(usually, in the plural) A basic, simple substance out of which something is made, raw material.

(usually, in the plural) A basic, simple substance out of which something is made, raw material.

(chemistry) A chemical substance made entirely of one such type of atom; 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.

(chemistry) A chemical substance made entirely of one such type of atom; 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.

One of the four basic building blocks of matter in theories of ancient philosophers and alchemists: water, earth, fire, and air.