tunicinWiktionary 原文构词拆分tunic词根/词干+-in后缀(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 tunic + -in.释义（英文）名词 Noun(archaic, biochemistry) A type of animal cellulose present in the mantle, or tunic, of the tunicates.