torus: Meaning and Definition of


Pronunciation: (tôr'us, tōr'-), [key]
— pl. to•ri
  1. a large convex molding, more or less semicircular in profile, commonly forming the lowest molding of the base of a column, directly above the plinth, sometimes occurring as one of a pair separated by a scotia and fillets. See illus. at
    1. a doughnut-shaped surface generated by the revolution of a conic, esp. a circle, about an exterior line lying in its plane.
    2. the solid enclosed by such a surface.
    1. the receptacle of a flower.
    2. a thickening of the wall membrane in the bordered pits occurring in the tracheid cells of the wood of many conifers.
  2. a rounded ridge; a protuberant part.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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