/ Dictionary / Index I ichneumon: Meaning and Definition of Find definitions for: ich•neu•mon Pronunciation: (ik-n'mun, -ny'-), [key] — n. Also calleda slender, long-tailed mongoose, Herpestes ichneumon, inhabiting Africa and southern Europe, and believed by the ancient Egyptians to devour crocodile eggs. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ichneumon (Thesaurus) Ichinomiya ichneumon fly Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language