Category:Concave

Con"cave ( or ; 277), a. Etym: [L. concavus; con- + cavus hollow: cf. F. concave. See Cave a hollow.]

1. Hollow and curved or rounded; vaulted; -- said of the interior of a curved surface or line, as of the curve of the of the inner surface of an eggshell, in opposition to convex; as, a concave mirror; the concave arch of the sky.

2. Hollow; void of contents. [R.] As concave. . . as a worm-eaten nut. Shak.

concave Con"cave, n. Etym: [L. concavum.]

1. A hollow; an arched vault; a cavity; a recess. Up to the fiery concave towering hight. Milton.

2. (Mech.)

Defn: A curved sheath or breasting for a revolving cylinder or roll.

concave Con"cave, v. t. [imp. & p. p. concaved (p. pr.& vb. n. Concaving.]

Defn: To make hollow or concave.