鯨げい脳のう油ゆげいのうゆMeanings1nounspermacetiA waxy substance obtained from the head of sperm whales, historically used in candles, ointments, and lubricants. Technical term.鯨げい脳のう油ゆはかつてろうそくの原げん料りょうとして使つかわれた。Spermaceti was once used as a material for candles.
