spastinWiktionary 原文英美构词拆解spastspastic词干in-in后缀-in(biochemistry) Used, as a modification of -ine, to form the names of a variety of types of compound; examples include proteins (globulin), carbohydrates (dextrin), dyes (alizarin) and others (vanillin).词源说明From spastic + -in.释义名词noun1(biochemistry) A protein, related to katanin, mutations of which lead to spastic paraplegia.