ambrein

Century Dictionary and Cyclopedia

1. n. A peculiar fatty substance obtained from ambergris by digesting it in hot alcohol. It is crystalline, is of a brilliant white color, and has an agreeable odor.

Wiktionary

1. n. A fragrant substance derived from ambergris, used in the perfume industry.

GNU Webster's 1913

1. n. (Chem.) A fragrant substance which is the chief constituent of ambergris.