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