spermaceti/ˌspɜ:məˈsetɪ; ˌspəmə`sɛtɪ/ n[U]white waxy fatty substance contained in solution in the heads of sperm whales, used (esp formerly) for ointments, candles, etc 鲸蜡; 鲸脑油.
牛津英汉双解词典