/ Dictionary / Index T transferrin: Meaning and Definition of Find definitions for: trans•fer•rin Pronunciation: (trans-fer'in), [key] — n. Biochem. a plasma glycoprotein that transports dietary iron to the liver, spleen, and bone marrow. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: transferrin (Thesaurus) transferral transfer RNA Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language