The definition of a toroid is a doughnut-shaped object that is formed by a curved surface, shape or body that rotates around a center point without intersecting it.(noun)
An example of a toroid is a doughnut-shaped O-ring.
See toroid in Webster's New World College Dictionary
Origin: tor(e) + -oid
See toroid in American Heritage Dictionary 4
Origin: + -oid.
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