Meaning of CONCAVE in English

CONCAVE

adj.

Pronunciation: kän- ' k ā v, ' kän- ˌ

Function: adjective

Etymology: Middle English, from Latin concavus, from com- + cavus hollow ― more at CAVE

Date: 15th century

1 : hollowed or rounded inward like the inside of a bowl

2 : arched in : curving in ― used of the side of a curve or surface on which neighboring normals to the curve or surface converge and on which lies the chord joining two neighboring points of the curve or surface

Merriam Webster Collegiate English Dictionary.      Merriam Webster - Энциклопедический словарь английского языка.