CONCAVE

An Illustrated Encyclopedic Medical Dictionary · 1892 · p. 16

adj. Koan-kav'. Gr., (coJAos. Lat., concavus. Fr., c. Ger., ausgehohlt, hohl, vertieft, kon/cav. It., concavo. Sp., concavo. Hollowed out, having the centre more depre ed than the edges. [B, 1, 71 (a. 24); L, 109.] [s. 367]