octenalWiktionary 原文英美构词拆解octenoctene词干al-al后缀‘aldehyde’-alOf or pertaining to. Adjectival suffix appended to various words, often nouns, to produce an adjective form. Often added to words of Latin origin, but used with other words also. · Forming nouns, especially of verbal action.词源说明From octene + -al (“aldehyde”).释义名词noun1(organic chemistry) Any of several isomeric unsaturated aliphatic aldehydes having eight carbon atoms and one double bond.