/ Dictionary / Index E -ectomy: Meaning and Definition of Find definitions for: -ectomy Pronunciation: [key] a combining form meaning “excision” of the part specified by the initial element, used in the formation of compound words: tonsillectomy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ectomorphic ectoparasite Related Content Daily Word Quiz: crockery Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language