FACTITIOUS a.
a natural, standard or rule; not natural; as, factitious cinnabar or jewels; a factitious taste. -- Fac-ti"tious*ly, adv. -- Fac*ti"tious-ness, n. He acquires a factitious propensity, he forms an incorrigible habit, of desultory reading. De Quincey.
FORMIC a.
cid, carbamic acid. -- Formic acid, a colorless, mobile liquid, HCO.OH, of a sharp, acid taste, occurring naturally in ants, nettles, pine needles, etc., and produced artifically in many ways, as by the oxidation of methyl alcohol, by the reduction of carbonic acid or the destructive distillation of oxalic acid. It is…