/ Dictionary / Index E Ectrin: Meaning and Definition of Find definitions for: Ec•trin Pronunciation: (ek'trin), [key] a brand of fenvalerate. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ectozoon ectrodactylism Related Content Daily Word Quiz: blanch Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language