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The quality or state of being round in shape; as, the roundness of the globe, of the orb of the sun, of a ball, of a bowl, a column, etc.

or figure. -- Abstract terms, those which express abstract ideas, as beauty, whiteness, roundness, without regarding any object in which they exist; or abstract terms are the names of orders, genera or species of things, in which there is a combination of similar qualities. -- Abstract numbers (Math.), numbers used…

The state of being convex; the exterior surface of a convex body; roundness. A smooth, uniform convexity and rotundity of a globe. Bentley.

ulpture in relief of which the figures project from the background by one half their full roundness.

Roundness; plumpness. [R.] High-kirtled for the chase, and what was shown Of maiden rondure, like the rose half-blown. Lowell.

Hence, completeness; entirety; roundness. For the more rotundity of the number and grace of the matter, it passeth for a full thousand. Fuller. A boldness and rotundity of speech. Hawthorne.

Roundness; rotundity.

Roundness; a round or circle. [Obs.] Shak.

To form into roundness; to make spherical, or spheral; to perfect. Tennyson.

The quality or state of being spherial; roundness; as, the sphericity of the planets, or of a drop of water.