atomic

Definitions

• (physics) Of or relating to atoms; composed of atoms; monatomic.
• Employing or relating to nuclear energy or processes.
• Infinitesimally small.
• Unable to be split or made any smaller.
• (computing) 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.
• (programming) Containing a single change, as opposed to involving numerous unrelated changes.