Dictionary and Thesaurus

Definition of Atom

• (n.) An ultimate indivisible particle of matter.
• (n.) An ultimate particle of matter not necessarily indivisible; a molecule.
• (n.) A constituent particle of matter, or a molecule supposed to be made up of subordinate particles.
• (n.) The smallest particle of matter that can enter into combination; one of the elementary constituents of a molecule.
• (n.) Anything extremely small; a particle; a whit.
• (v. t.) To reduce to atoms.

Synonyms of Atom

• Molecule
• Particle
• Corpuscle
• Mote
• Speck

Antonyms of Atom

Homophones of Atom

• Atum