anchor ring vs toroid

anchor ring and toroid both are nouns.

Word	Noun	Adjective	Verb	Adverb
anchor ring	Yes	No	No	No
toroid	Yes	No	No	No

As nouns, toroid is a hypernym of anchor ring; that is, toroid is a word with a broader meaning than anchor ring:

anchor ring (noun)	toroid (noun)
a toroidal shape	a ring-shaped surface generated by rotating a circle around an axis that does not intersect the circle
	the doughnut-shaped object enclosed by a torus