monatomic

monatomic is defined in Webster's Unabridged Dictionary (1913) with 1 sense. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.(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 (public domain, via GCIDE / Project Gutenberg).

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