Main Entry: ¹pin·na·cle

Pronunciation: \ˈpi-ni-kəl\

Function: noun

Etymology: Middle English pinacle, from Anglo-French, from Late Latin pinnaculum small wing, gable, from Latin pinna wing, battlement

Date: 14th century

1 : an upright architectural member generally ending in a small spire and used especially in Gothic construction to give weight especially to a buttress
2 : a structure or formation suggesting a pinnacle; specifically : a lofty peak
3 : the highest point of development or achievement : acme

synonyms see summit

[pinnacle illustration]