คำว่า ' atom ' ( N )
มีความหมายในภาษาไทยว่า อะตอม
คำนิยามในภาษาอังกฤษ (definition) :
[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.