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spermaceti n.鯨蠟,鯨腦油。

spermaduct

Features : long head that shares about a third of the total length ; a concave forehead ; flat chin stretching to the front ; the spermaceti case containing high fat content is located in the prolapsed occipital bone . besides making candles and ointments , this fat is good ingredient for making precision instrument lubricants 頭部特別長,約占身體長度的三分之一,額部下方凹入,平扁的上頷由此向前伸出,頭頂之外枕骨下垂構成鯨油器,內藏大量油脂,這種油脂除可制成臘燭和油膏之外,更可提煉成維護精密儀器的潤滑劑。