semilunarWiktionary 原文构词拆分semi-前缀half · partial, incomplete+lunar词根/词干词源说明From semi- + lunar.释义（英文）形容词 AdjectiveShaped like a half-moon; crescent-shaped.名词 Noun(anatomy) The lunate bone, or semilunar bone.词族派生词（4）semilunar ganglionsemilunar notchsemilunar bonesemilunar valve