/ Dictionary / Index E ectrodactylism: Meaning and Definition of Find definitions for: ec•tro•dac•tyl•ism Pronunciation: (ek"trō-dak'tu-liz"um), [key] — n. Med. the congenital absence of part or all of one or more fingers or toes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Ectrin ectromelia Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language