Cāch'a-lōt, n.

(Synop., § 130), n. [Fr. cachalot, D. kazilot, Dan. kaskelot, Sw. kaselot, Ger. kaschalot, kaschelot, Greenland kignitilik.] (Zool.) The sperm whale (Physeter macrocephalus). It has in its head a large cavity, in which is collected an oily fluid, which, after death, concretes into a granulated, yellowish substance called spermaceti.