1. atom - Noun
2. atom - Verb
An ultimate indivisible particle of matter.
An ultimate particle of matter not necessarily indivisible; a molecule.
A constituent particle of matter, or a molecule supposed to be made up of subordinate particles.
The smallest particle of matter that can enter into combination; one of the elementary constituents of a molecule.
Anything extremely small; a particle; a whit.
To reduce to atoms.
Source: Webster's dictionaryThe unleashed power of the atom has changed everything save our modes of thinking and we thus drift toward unparalleled catastrophe. Albert Einstein
No country without an atom bomb could properly consider itself independent. Charles de Gaulle
Life exists in the universe only because the carbon atom possesses certain exceptional properties. James Jeans
The atom bomb is a paper tiger which the U.S. reactionaries use to scare people. it looks terrible but in fact it isn't. Of course, the atom bomb is a weapon of mass slaughter, but the outcome of a war is decided by the people--not by one of two new types of weapon. Mao Zedong
I would rather be ashes than dust! I would rather be a superb meteor, every atom of me in magnificent glow, than a sleepy and permanent planet. Jack London
What a sad era when it is easier to smash an atom than a prejudice. Albert Einstein