4 definitions found
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Concave \Con"cave\ (k[o^][ng]*k[=a]*v" or k[o^]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.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
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.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Concave \Con"cave\, v. t. [imp. & p. p. {concaved}; p. pr & vb
n. {Concaving}.]
To make hollow or concave.
From WordNet r 1.6 [wn]:
concave
adj : curving inward [ant: {convex}]
more about concave
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