What does "nuclide" mean?

An atomic nucleus specified by its atomic number and atomic mass.

What is a synonym for "nuclide"?

Common synonyms include: atom, ion, shell, tracer.

How do you pronounce "nuclide"?

Pronounced //ˈn(j)uːklaɪd//.

Nuclide

//ˈn(j)uːklaɪd// noun

noun ·Rare ·Advanced level

Definitions

Noun

1
An atomic nucleus specified by its atomic number and atomic mass.

Synonyms

All synonyms

atom ion shell tracer

Etymology

From nucleus + -ide. Coined by American chemist Truman Kohman in 1947 in an article in the American Journal of Physics, in which he defines nuclide as "a species of atom characterized by the constitution of its nucleus, in particular by the numbers of protons and neutrons in its nucleus."

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.