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Atomic
The general meaning of "atomic" is "irreducible". That is, reduced to the smallest possible part. It has more specific meanings in several contexts:
In
chemistry
, chemical
atoms
are grouped by type in the
periodic table
and consist of
particles
as described by
particle physics
.
In
computer science
, an
atomic
operation is one that cannot be subdivided. Or more specifically, an operation that always completes as a whole, or doesn't complete at all. See
atomic (computer science)
.