MONATOMIC

monatomic, monoatomic

(adjective) of or relating to an element consisting of a single atom; “helium and argon are monatomic gases”

Source: WordNet® 3.1


Etymology

Adjective

monatomic (not comparable)

(chemistry) Of an element, consisting of a single atom in the molecule, for example, the noble gases. Note: Strictly speaking, a molecule has at least two atoms.

Source: Wiktionary


Mon`a*tom"ic, adv. Etym: [Mon- + atomic.] (Chem.) (a) Consisting of, or containing, one atom; as, the molecule of mercury is monatomic. (b) Having the equivalence or replacing power of an atom of hydrogen; univalent; as, the methyl radical is monatomic.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

2 May 2025

MINESHAFT

(noun) excavation consisting of a vertical or sloping passageway for finding or mining ore or for ventilating a mine


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