/ Dictionary / Index H heterocercal: Meaning and Definition of Find definitions for: het•er•o•cer•cal Pronunciation: (het"ur-u-sûr'kul), [key] — adj. Ichthyol. having an unequally divided tail, characteristic of sharks, rays, and skates. Cf. diphycercal, homocercal. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: heterocercal (Thesaurus) heteroauxin heterochromatic Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language