Hypertext Webster Gateway: "diatomic"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Diatomic \Di`a*tom"ic\, a. [Pref. di- + atomic.] (Chem.)
(a) Containing two atoms.
(b) Having two replaceable atoms or radicals.
From WordNet (r) 1.7 (wn)
diatomic
adj : of or relating to a molecule made up of two atoms; "a
diatomic molelcule"
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