/ Dictionary / Index P pili: Meaning and Definition of Find definitions for: pi•li Pronunciation: (pē-lē'), [key] — pl. -lies. a Philippine tree, Canarium ovatum, the edible seeds of which taste like a sweet almond. Also calledthe seed of this tree. pi•li Pronunciation: (pī'lī), [key] — n. pl. of pili- Pronunciation: [key] a combining form meaning “hair,” used in the formation of compound words: piliform. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Pilgrim's Progress* piliferous Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language