Prehnitic
Pronunciation : Prehn*it"ic
Part of Speech : a.
Definition : Defn: Pertaining to, or designating, a tetrabasic acid of benzene obtained as a white crystalline substance; -- probably so called from the resemblance of the wartlike crystals to the mammill? on the surface of prehnite.
(Chem.)
Source : Webster's Unabridged Dictionary, 1913