Webster’s Revised Unabridged Dictionary · 1913 Rotund Ro·tund′ (rō·tŭnd′), a. [L. rotundus. See Round, and cf. Rotunda.] 1. Round; circular; spherical. 2. Hence, complete; entire. 3. (Bot.) Orbicular, or nearly so. Gray. Ro·tund′, n. A rotunda. [Obs.] Burke. ‹ Rotular Rotunda ›