/ Dictionary / Index I ichth.: Meaning and Definition of Find definitions for: ichth. Pronunciation: [key] ichthyology. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ichor ichthammol Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language