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
Related formsa·tom·i·cal·ly, adverbnon·a·tom·ic, adjectivenon·a·tom·i·cal, adjectivenon·a·tom·i·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for atomic

British Dictionary definitions for atomic

atomic

/ (əˈtɒmɪk) /

adjective

of, using, or characterized by atomic bombs or atomic energyatomic warfare
of, related to, or comprising atomsatomic 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 Formsatomically, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for atomic

atomic


adj.
Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for atomic

atomic

[ ə-tŏmĭk ]

Relating to an atom or to atoms.
Employing nuclear energy.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.