semilunar adjective & noun. [sɛmɪ'lu:nǝ] LME.
[medieval Latin semilunaris: see SEMI-, LUNAR adjective.]
A. adjective. Chiefly Anatomy, Zoology, & Botany. Shaped like a half-moon or crescent; having one side convex and the other straight or concave; spec. designating a bone in the carpus, a cartilage in the knee, a valve in the opening of the aorta or of the pulmonary artery from the heart. LME.
b. noun. A semilunar cartilage, valve, etc. L19.

■ semilunary adjective = SEMILUNAR adjective M17-M18.

■ semilunate adjective = LUNATE adjective M19.

■ semi-lu'nated adjective having a crescent-shaped indentation E18.

[TahlilGaran] English Dictionary ▲