rim
rim1 / rim/ • n. the upper or outer edge of an object, typically something circular or approximately circular: a china egg cup with a gold rim. ∎ (also wheel rim) the outer edge of a wheel, on which the tire is fitted. ∎ the metal hoop from which a basketball net is suspended. ∎ (often rims) the part of a glasses frame surrounding the lenses. ∎ a limit or boundary of something: the outer rim of the solar system. ∎ an encircling stain or deposit: a thick rim of suds.• v. (rimmed , rim·ming ) [tr.] form or act as an outer edge or rim for: a huge lake rimmed by glaciers | [as adj. , in comb.] (-rimmed) steel-rimmed glasses. ∎ (usu. be rimmed) mark with an encircling stain or deposit: his collar was rimmed with dirt.DERIVATIVES: rim·less adj.rim2 • v. (rimmed , rim·ming ) [tr.] vulgar slang lick or suck the anus of (someone) as a means of sexual stimulation.