toroid

[ tawr-oid, tohr- ]

noun

, Geometry.

1. a surface generated by the revolution of any closed plane curve or contour about an axis lying in its plane.
2. the solid enclosed by such a surface.

toroid

/ ˈtɔːrɔɪd /

noun

1. geometry a surface generated by rotating a closed plane curve about a coplanar line that does not intersect the curve
2. the solid enclosed by such a surface See also torus

toroid

/ tôr′oid′ /

1. A surface generated by rotating a closed curve about an axis that is in the same plane as the curve but does not intersect it.

Derived Forms

• toˈroidal, adjective

Word History and Origins

Origin of toroid¹

First recorded in 1895–1900; tor(us) + -oid