Cachalot
Pronunciation : Cach"a*lot
Part of Speech : n.
Etymology : [F. cachalot.] (Zo?l.)
Definition : Defn: The sperm whale (Physeter macrocephalus). It has in the top of its head a large cavity, containing an oily fluid, which, after death, concretes into a whitish crystalline substance called spermaceti. See Sperm whale.
Source : Webster's Unabridged Dictionary, 1913