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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.

One of them in Nagasaki survived the 1945 atomic bomb blast and is still in working order, 117 years after it was fabricated and shipped from Scotland.

From BBC

While the United States and Russia have thousands of nuclear warheads each, in Europe only France and Britain have atomic weapons, with the combined total in the hundreds.

From Barron's

"Our results are therefore directly relevant for next-generation data storage technologies. At the same time, they are of fundamental importance, as they provide new insights into magnetic interactions in atomically thin materials."

From Science Daily

The team tested materials with very different atomic arrangements.

From Science Daily

To understand how ferrihydrite interacts with such a wide range of compounds, the researchers used high-resolution molecular modeling along with atomic force microscopy to closely examine the mineral's surface.

From Science Daily