ypsiliformWiktionary 原文/ˈɪpsɪlɪˌfɔː(r)m/构词拆解ypsilypsilon词干iform-iform后缀-iformAlternative form of -form (with interfix -i-)词源说明From ypsilon + -iform.释义形容词adjective1In the shape of the letter upsilon (Υ (U)).