/ Dictionary / Index T transfect: Meaning and Definition of Find definitions for: trans•fect Pronunciation: (trans-fekt'), [key] — v.t. Microbiol. to cause transfection in (a cell). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. transfd. transfection Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language