See Also: Torus(medicine)
Torus(health)
torus(dictionary)
compact torus(medicine)
Fracture, torus(health)
torus uterinus(medicine)
torus uretericus(medicine)
torus tubarius(medicine)
torus occipitalis(medicine)
torus manus(medicine)

torus (iou)



torus noun. , -ruses. M16.
[Latin = swelling, bolster, round moulding.]
Architecture. A large convex moulding, usu. semicircular in cross-section, esp. at the base of a column. M16.
Botany.
a. The receptacle of a flower. E19.
b. A central thickened area of the pit membrane in a bordered pit of a gymnosperm. L19.
Zoology. A protuberant part or organ, as the ventral parapodia in some annelids; Anatomy a smooth rounded ridge. L19.
Geometry. Orig., a surface or solid generated by the revolution of a circle or other conic about any axis. Now spec. a surface or solid generated by the circular motion of a circle about an axis outside itself but lying in its plane; a solid ring of circular cross-section; a body topologically equivalent to this, having one hole in it but not necessarily circular in form or cross-section. L19.