tori Definition

tori
toric torus

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torus
noun tori

1. physics.
A circular ring with a D-shaped cross-section used to contain plasma in nuclear fission reactors.
2. bot.
The receptacle of a flower.
3. geom.
A solid curved surface with a hole in it, resembling a doughnut, obtained by rotating a circle about an axis lying in the same plane as the circle.

Derivative: toric
adj

See also toroid.

Etymology: 16c: Latin, meaning ‘bulge' or ‘swelling'.