malformationWiktionary 原文中文来自 ECDICTn.变形(体)，畸形构词拆分mal-前缀bad, badly · unintentional, mistaken, accidental+formation词根/词干词源说明From mal- + formation.释义（英文）名词 NounAn abnormal formation.(teratology) An abnormal developmental feature of offspring.词族派生词（5）Arnold-Chiari malformationarteriovenous malformationChiari malformationDandy-Walker malformationmalformational