单词 | torus |
释义 | to·rus ![]() n. pl. to·ri (tôrī) 1. Architecture A large convex molding, semicircular in cross section, located at the base of a classical column. 2. Anatomy A bulging or rounded projection or swelling. 3. Botany a. The receptacle of a flower. b. A thickened area in the middle of the membrane that connects the pits of tracheids in conifers and certain other gymnosperms. 4. Mathematics A toroid generated by a circle; a surface having the shape of a doughnut. Also called tore2. [Latin, bulge, knot, torus.] ![]() |
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