/ Dictionary / Index S sexual relations: Meaning and Definition of Find definitions for: sex'ual rela'tions Pronunciation: [key] sexual intercourse; coitus. any sexual activity between individuals. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sexual orientation sexual reproduction Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language