/ Dictionary / Index P planula: Meaning and Definition of Find definitions for: plan•u•la Pronunciation: (plan'yu-lu), [key] — pl. -lae the ciliate, free-swimming larva of a coelenterate. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: planula (Thesaurus) plantswoman plan view Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language