subatomic
adjective
sub·atom·ic
ˌsəb-ə-ˈtä-mik 
1
: of or relating to the inside of the atom
2
: of, relating to, or being particles smaller than atoms
Examples of subatomic in a Sentence
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The quantum probabilities bouncing around in your lap at the subatomic level.
—
Bill Burnett, Big Think, 5 Feb. 2026
This underground ring, 27 kilometers in circumference and straddling the border between France and Switzerland, was built to slam subatomic particles together at near light speed and test deep theories of the universe.
—IEEE Spectrum, 3 Feb. 2026
The detection challenge is to sort deuterons and antideuterons from other subatomic particles, such as pions, protons, and kaons, and to measure momenta precisely enough to observe femtoscopic correlations.
—Tejasri Gururaj, Interesting Engineering, 29 Jan. 2026
Both generate blasts of high-energy subatomic particles that can slam into Earth’s magnetic field, causing widespread problems such as blackouts, loss of satellites, and more.
—Phil Plait, Scientific American, 22 Jan. 2026
See All Example Sentences for subatomic
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Bill Burnett, Big Think, 5 Feb. 2026
This underground ring, 27 kilometers in circumference and straddling the border between France and Switzerland, was built to slam subatomic particles together at near light speed and test deep theories of the universe.
—IEEE Spectrum, 3 Feb. 2026
The detection challenge is to sort deuterons and antideuterons from other subatomic particles, such as pions, protons, and kaons, and to measure momenta precisely enough to observe femtoscopic correlations.
—Tejasri Gururaj, Interesting Engineering, 29 Jan. 2026
Both generate blasts of high-energy subatomic particles that can slam into Earth’s magnetic field, causing widespread problems such as blackouts, loss of satellites, and more.
—Phil Plait, Scientific American, 22 Jan. 2026
See All Example Sentences for subatomic
Cite this Entry
“Subatomic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/subatomic. Accessed 15 Feb. 2026.
Copy CitationMedical Definition
subatomic
adjective
sub·atom·ic
ˌsəb-ə-ˈtäm-ik
1
: of or relating to the inside of the atom
2
: of, relating to, or being particles smaller than atoms
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