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Synonyms

subatomic

American  
[suhb-uh-tom-ik] / ˌsʌb əˈtɒm ɪk /

adjective

Physics.
  1. of or relating to a process that occurs within an atom.

  2. noting or pertaining to a particle or particles contained in an atom, as electrons, protons, or neutrons.


subatomic British  
/ ˌsʌbəˈtɒmɪk /

adjective

  1. of, relating to, or being a particle making up an atom or a process occurring within atoms

    the electron is a subatomic particle

  2. having dimensions smaller than atomic dimensions

"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

subatomic Cultural  
  1. A descriptive term for objects and events within the atom.


Etymology

Origin of subatomic

First recorded in 1900–05; sub- + atomic

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.

Axions are theoretical subatomic particles that scientists believe could help explain dark matter.

From Science Daily

Quantum computers instead use qubits, which are often subatomic particles such as photons.

From Science Daily

Powerful systems like the System Two operate based on the principles of quantum mechanics, the science behind atoms, molecules, and subatomic particles.

From Barron's

That picture turned out to be wrong, since atoms are built from subatomic particles rather than twists in space.

From Science Daily

Quantum computers use quantum bits, or qubits, that leverage the rules of subatomic physics to process information in multiple states simultaneously.

From MarketWatch