/ Dictionary / Index C chaetognath: Meaning and Definition of Find definitions for: chae•tog•nath Pronunciation: (kē'tog-nath", -tug-), [key] — n. any animal of the phylum Chaetognatha, comprising the arrowworms. —adj. belonging or pertaining to the Chaetognatha. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: chaetognath (Thesaurus) chaeto- chaetophorous Related Content Daily Word Quiz: fresco Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language