noun, plural to·ri [tawr-ahy, tohr-ahy] /ˈtɔr aɪ, ˈtoʊr aɪ/.
- a doughnut-shaped surface generated by the revolution of a conic, especially a circle, about an exterior line lying in its plane.
- the solid enclosed by such a surface.
- the receptacle of a flower.
- a thickening of the wall membrane in the bordered pits occurring in the tracheid cells of the wood of many conifers.
Origin of torus
Examples from the Web for torus
Historical Examples of torus
The lateral arcades have similar capitals but only one torus.
Thalamaflorous, with petals and stamens inserted on the torus or Thalamus.
A beautiful and early example of its use occurs on the torus of the Ionic columns of the Erectheum at Athens.The Archaeology and Prehistoric Annals of Scotland
The Torus or Receptacle of the flower (237, Fig. 223) is the portion which belongs to the stem or axis.
At this time each pistil loosens from the torus and can be easily removed, especially if some animal touch the hooks.Seed Dispersal
William J. Beal
noun plural -ri (-raɪ)
Word Origin for torus
1560s, from Latin torus "a swelling, bulge, knot; cushion, couch."