资料来源 : pyDict

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资料来源 : Webster's Revised Unabridged Dictionary (1913)

Trigenic \Tri*gen"ic\, a. [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.)
   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}.