toroid vs torus

toroid and torus both are nouns.

Word	Noun	Adjective	Verb	Adverb
toroid	Yes	No	No	No
torus	Yes	No	No	No

As nouns, toroid and torus are synonyms defined as:

toroid and torus: a ring-shaped surface generated by rotating a circle around an axis that does not intersect the circle

toroid (noun)	torus (noun)
a ring-shaped surface generated by rotating a circle around an axis that does not intersect the circle	commonly the lowest molding at the base of a column
the doughnut-shaped object enclosed by a torus	a ring-shaped surface generated by rotating a circle around an axis that does not intersect the circle