• (n.) A white, waxy substance, forming the essential part of spermaceti.
Ce'tin noun [ Latin cetus whale.] (Chemistry) A white, waxy substance, forming the essential part of spermaceti. 
a white, crystalline, water-insoluble fat, CHO, obtained from spermaceti by extraction with ether: used chiefly as an emulsive agent in the manufacture of pharmaceuticals and cosmetics and as a base in the manufacture of candles and soaps. Also called