genu
/ˈdʒenjuː/noun
(pl.genua /-njʊə/)
1- Anatomy the knee【剖】膝盖。
1.1
- Anatomy & Biology a part of certain structures resembling a knee, in particular a bend in the corpus callosum of mammals【剖, 生】膝状体（尤指哺乳动胼胝体中的弯曲部分）。
词源
mid 19th cent.: from Latin.