Dictionary.com
Thesaurus.com
Synonyms

atomic

American  
[uh-tom-ik] / əˈtɒm ɪk /
Also atomical

adjective

  1. of, pertaining to, resulting from, or using atoms, atomic energy, or atomic bombs.

    an atomic explosion.

  2. propelled or driven by atomic energy.

    an atomic submarine.

  3. Chemistry. existing as free, uncombined atoms.

  4. extremely minute.


atomic British  
/ əˈtɒmɪk /

adjective

  1. of, using, or characterized by atomic bombs or atomic energy

    atomic warfare

  2. of, related to, or comprising atoms

    atomic hydrogen

  3. extremely small; minute

  4. 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

"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

atomic Scientific  
/ ə-tŏmĭk /
  1. Relating to an atom or to atoms.

  2. Employing nuclear energy.


Other Word Forms

  • atomically adverb
  • nonatomic adjective
  • nonatomical adjective
  • nonatomically adverb

Etymology

Origin of atomic

First recorded in 1670–80; atom + -ic

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The construction of atomic plants had stalled during the revolution and the subsequent war with Iraq.

From The Wall Street Journal

The problem with etching patterns with atomically precise beams of light is that the material you shine it on also has to be atomically precise, or the pattern comes out blurry.

From The Wall Street Journal

By contrast, the United States and Russia, the world's two main atomic powers, have thousands of nuclear warheads each.

From Barron's

IonQ has been on an acquisition spree, snapping up companies specializing in atomic clocks to quantum sensors and, most recently, semiconductors.

From Barron's

To make missiles nuclear-capable, Iran would also need to develop an atomic warhead small enough to fit in such a re-entry vehicle.

From The Wall Street Journal