/ Dictionary / Index F fibronectin: Meaning and Definition of Find definitions for: fi•bro•nec•tin Pronunciation: (fī"bru-nek'tin), [key] — n. Cell Biol. a fibrous protein that binds to collagen, fibrin, and other proteins and also to the cell membranes, functioning as an anchor and connector. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. fibroma fibroplasia Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language