Main Entry: ¹clar·i·on

Pronunciation: \ˈkler-ē-ən, ˈkla-rē-\

Function: noun

Etymology: Middle English, from Middle French & Medieval Latin; Middle French clairon, from Medieval Latin clarion-, clario, from Latin clarus

Date: 14th century

1 : a medieval trumpet with clear shrill tones
2 : the sound of or as if of a clarion