Meaning of ATOM in English

ATOM

vt to reduce to atoms.

2. atom ·noun an ultimate indivisible particle of matter.

3. atom ·noun anything extremely small; a particle; a whit.

4. atom ·noun an ultimate particle of matter not necessarily indivisible; a molecule.

5. atom ·noun a constituent particle of matter, or a molecule supposed to be made up of subordinate particles.

6. atom ·noun the smallest particle of matter that can enter into combination; one of the elementary constituents of a molecule.

Webster English vocab.      Английский словарь Webster.