Tri*gen"ic, a. Etym: [Pref. tri- + gen- + -ic. So named in reference to its composition, it being supposed to contain the radicals of three molecules of cyanic acid.] (Chem.)
Definition: Of, pertaining to, or designating, an acid, C4H7N3O2, obtained, by the action of the vapor of cyanic acid on cold aldehyde, as a white crystalline substance having a slightly acid taste and faint smell; -- called also ethidene- or ethylidene-biuret.
Source: Webster’s Unabridged Dictionary 1913 Edition
23 May 2025
(adverb) showing consideration and thoughtfulness; “he had thoughtfully brought with him some food to share”
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