/ Dictionary / Index R RSD: Meaning and Definition of Find definitions for: RSD Pronunciation: [key] repetitive strain disorder. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. RSA RSE Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language