/ Dictionary / Index P parallel cousin: Meaning and Definition of Find definitions for: par'allel cous'in Pronunciation: [key] a cousin who is the child either of one's mother's sister or of one's father's brother. Also calledCf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. parallel bars parallel cousin marriage Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language