Meaning of CONCAVE in English

CONCAVE

I. adjective see: cave Date: 15th century hollowed or rounded inward like the inside of a bowl, arched in ; curving in, II. noun Date: 1552 a ~ line or surface

Merriam Webster. Explanatory English dictionary Merriam Webster.      Толковый словарь английского языка Мерриам-Уэбстер.