atomic

[ uh-tom-ik ]
/ əˈtɒm ɪk /

adjective

of, pertaining to, resulting from, or using atoms, atomic energy, or atomic bombs: an atomic explosion.
propelled or driven by atomic energy: an atomic submarine.
Chemistry. existing as free, uncombined atoms.
extremely minute.
Also a·tom·i·cal.

Origin of atomic

First recorded in 1670–80; atom + -ic

OTHER WORDS FROM atomic

a·tom·i·cal·ly, adverb non·a·tom·ic, adjective non·a·tom·i·cal, adjective non·a·tom·i·cal·ly, adverb

Example sentences from the Web for atomic

British Dictionary definitions for atomic

atomic
/ (əˈtɒmɪk) /

adjective

of, using, or characterized by atomic bombs or atomic energy atomic warfare
of, related to, or comprising atoms atomic hydrogen
extremely small; minute
logic (of a sentence, formula, etc) having no internal structure at the appropriate level of analysis. In predicate calculus, Fa is an atomic sentence and Fx an atomic predicate

Derived forms of atomic

atomically, adverb

Scientific definitions for atomic

atomic
[ ə-tŏmĭk ]

Relating to an atom or to atoms.
Employing nuclear energy.