/ Dictionary / Index R rimmed steel: Meaning and Definition of Find definitions for: rimmed' steel' Pronunciation: [key] a low-carbon steel containing enough iron oxide so that there is continuous generation of carbon monoxide during solidification. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rimmed Rimmer Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language