Found 2 items, similar to diatomic.
English → English (WordNet) Definition: diatomic diatomic adj : of or relating to a molecule made up of two atoms; “a diatomic molelcule”
English → English (gcide) Definition: diatomic 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]