Semilunar bone


Semilunar bone
Semilunar Sem`i*lu"nar, a. Shaped like a half moon. [1913 Webster]

{Semilunar bone} (Anat.), a bone of the carpus; the lunar. See {Lunar}, n.

{Semilunar valves}, or {Sigmoid valves} (Anat.), the valves at the beginning of the aorta and of the pulmonary artery which prevent the blood from flowing back into the ventricle. [1913 Webster]


The Collaborative International Dictionary of English. 2000.