Dictionary
3 ENTRIES FOUND:

torus

noun to·rus \ˈtr-əs\
plural to·ri \ˈtr-ˌī, -ˌē\

Definition of TORUS

1
:  a large molding of convex profile commonly occurring as the lowest molding in the base of a column
2
:  the thickening of a membrane closing a wood-cell pit (as of gymnosperm tracheids) having the secondary cell wall arched over the pit cavity
3
:  a doughnut-shaped surface generated by a circle rotated about an axis in its plane that does not intersect the circle; broadly :  toroid
4
:  a smooth rounded anatomical protuberance (as a bony ridge on the skull)

Origin of TORUS

New Latin, from Latin, protuberance, bulge, torus molding
First Known Use: 1563

torus

noun to·rus \ˈtōr-əs, ˈtr-\   (Medical Dictionary)
plural to·ri \ˈtō(ə)r-ˌī, ˈt(ə)r-, -ˌē\

Medical Definition of TORUS

1
:  a doughnut-shaped surface generated by a circle rotated about an axis in its plane that does not intersect the circle
2
:  a smooth rounded anatomical protuberance (as a bony ridge on the skull) <a supraorbital torus>

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