/ Dictionary / Index R rimfire: Meaning and Definition of Find definitions for: rim•fire Pronunciation: (rim'fīr"), [key] — adj. (of a cartridge) having the primer in a rim encircling the base. Cf.(def. 1). (of a firearm) designed for the use of such cartridges. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rime suffisante* Rimini Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language