(geometry, dated) A torus.

plural of anchor ring

(historical) A Victorian love token, a ring set with precious stones whose initial letters spelled regard (e.g. ruby, emerald, garnet, amethyst, ruby, diamond) or some other word of affection.

plural of regard ring

An annular tympanic bone, to which the tympanic membrane is attached.

plural of tympanic ring

plural of rod ring

(fishing) Any of the rings along a fishing rod through which the line runs.

(historical) A fake ring made from a rush (the plant), anciently used to seduce girls into mock marriage.

plural of rush ring