/ Dictionary / Index P penannular: Meaning and Definition of Find definitions for: pen•an•nu•lar Pronunciation: (pen-an'yu-lur), [key] — adj. having the shape or design of an incomplete circle. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Penang Penates Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language