Con"cave (k&obreve;&nsm;*kā*v" or k&obreve;n"-;
277), a. [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.
As concave . . . as a worm-eaten nut.
Con"cave, n. [L. concavum.]
1. A hollow; an arched vault; a cavity; a
Up to the fiery concave towering hight.
2. (Mech.) A curved sheath or
breasting for a revolving cylinder or roll.
Con"cave, v. t. [imp. & p.
p. concaved (&?;); p. pr. & vb.
n. Concaving.] To make hollow or