How do you spell Concave
Available Definitions:
1) a. - 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) a. - Hollow; void of contents.
3) n. - A hollow; an arched vault; a cavity; a recess.
4) n. - A curved sheath or breasting for a revolving cylinder or roll.
5) v. t. - To make hollow or concave.
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