Definition of "atom"
- noun
The smallest, indivisible constituent part or unit of something.
The smallest possible amount of matter which still retains its identity as a chemical element, now known to consist of a nucleus surrounded by electrons.
A non-zero member of a Boolean algebra that is not a union of any other elements.
A theoretical particle of matter, imagined to be incapable of further division; the smallest possible unit of substance.
The smallest medieval unit of time, equal to fifteen ninety-fourths of a second.
An individual number or symbol, as opposed to a list. A scalar value.
A very small amount.
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