/ Dictionary / Index P Petrarchan sonnet: Meaning and Definition of Find definitions for: Petrar'chan son'net Pronunciation: [key] a sonnet form popularized by Petrarch, consisting of an octave with the rhyme scheme abbaabba and of a sestet with one of several rhyme schemes, as cdecde or cdcdcd. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Petrarchan Petrarchism Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language