'diatomic' definitions:
Definition of 'diatomic'
(from WordNet)
adjective
Of or relating to a molecule made up of two atoms; "a diatomic molecule"
Definition of 'diatomic'
From: GCIDE
- diatomic \di`a*tom"ic\ (d[imac]`[.a]*t[o^]m"[i^]k), a. [Pref. di- + atomic.] (Chem.) (a) Containing two atoms. (b) Having two replaceable atoms or radicals. [1913 Webster]