An atomic operation.
Of or relating to atoms; composed of atoms; monatomic.
A stream of atomic hydrogen is emitted.
Employing or relating to nuclear energy or processes.
We built a small atomic bomb in the garage.
Infinitesimally small.
The hairs on a bedbug are almost atomic.
Unable to be split or made any smaller.
A bit is an atomic item of data.
Of an operation: guaranteed to complete either fully or not at all while waiting in a pause, and running synchronously when called by multiple asynchronous threads.
In order to avoid race conditions, this operation has to be atomic.
(of a commit in a VCS) Containing a single change, as opposed to involving numerous unrelated changes.