cetaneWiktionary 原文英美词源链拉丁语Latin约前 75–公元 3 世纪cetus‘whale’↓ 派生英语Englishcetane词源说明From Latin cetus (“whale”) + -ane.释义名词noun1(organic chemistry) The aliphatic hydrocarbon C16H34 (hexadecane) used as a standard for diesel fuel.同族词派生词 2cetane number·