from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Architecture A large convex molding, semicircular in cross section, located at the base of a classical column.
- n. Anatomy A bulging or rounded projection or swelling.
- n. Botany The receptacle of a flower.
- n. Mathematics A toroid generated by a circle; a surface having the shape of a doughnut. Also called tore2.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A topological space which is a product of two circles.
- n. The standard representation of such a space in 3-dimensional Euclidean space: a shape consisting of a ring with a circular cross-section: the shape of an inner tube or hollow doughnut.
- n. The product of the specified number of circles.
- n. A molding which projects at the base of a column and above the plinth.
- n. The end of the peduncle or flower stalk to which the floral parts (or in the Asteraceae, the florets of a flower head) are attached; see receptacle.
from the GNU version of the Collaborative International Dictionary of English
- n. A large molding used in the bases of columns. Its profile is semicircular. See Illust. of Molding.
- n. One of the ventral parapodia of tubicolous annelids. It usually has the form of an oblong thickening or elevation of the integument with rows of uncini or hooks along the center. See Illust. under Tubicolæ.
- n. The receptacle, or part of the flower on which the carpels stand.
- n. The surface described by the circumference of a circle revolving about a straight line in its own plane.
- n. The solid inclosed by such a surface; -- sometimes called an anchor ring.
from The Century Dictionary and Cyclopedia
- n. In geometry, a tore or anchor-ring. See tore, 2.
- n. In architecture, a large convex molding of semicircular profile or a profile of kindred curve, used especially in bases, generally as the lowest member of the base, above the plinth when this is present. It differs from the astragal only in size, the astragal being much smaller. Sometimes called tore. See also cuts under base and column.
- n. In botany, the receptacle of a flower; the more or less enlarged extremity of a stem or floral axis upon which the floral organs are situated. See receptacle, 2 , and cut under myrtle.
- n. In anatomy, a smooth rounded ridge or elongated protuberance, as of a muscle; specifically, the tuber cinereum of the brain, or that part of the floor of the third ventricle which is prolonged downward to form a contracted passage from the cavity of the third ventricle into that of the pituitary body.
- n. In zoology, some part or organ likened to a torus; specially, a ventral parapodium of some annelids.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. commonly the lowest molding at the base of a column
- n. a ring-shaped surface generated by rotating a circle around an axis that does not intersect the circle
Latin, bulge, knot, torus.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin torus ("swelling, protuberance"). (Wiktionary)