semilunar
adjective
semi·lu·nar ˌse-mē-ˈlü-nər 
ˌse-ˌmī-,
-mi-
: lunate
Word History
Etymology
New Latin semilunaris, from Latin semi- + lunaris lunar
First Known Use
1597, in the meaning defined above
Phrases Containing semilunar
Medical Definition
semilunar
adjective
semi·lu·nar -ˈlü-nər
: shaped like a crescent