Main Entry: semi·cir·cle

Pronunciation: \ˈse-mē-ˌsər-kəl, ˈse-ˌmī-, -mi-\

Function: noun

Etymology: Latin semicirculus, from semi- + circulus circle

Date: 1526

1 : a half of a circle
2 : an object or arrangement of objects in the form of a half circle

— semi·cir·cu·lar \ˌse-mē-ˈsər-kyə-lər\ adjective