/ Dictionary / Index N neurohormone: Meaning and Definition of Find definitions for: neu•ro•hor•mone Pronunciation: (noor"ō-hôr'mōn, nyoor"-), [key] — n. Biochem. any of various substances, as antidiuretic hormone, formed in the nervous system and delivered to an effector organ through blood circulation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: neurohormone (Thesaurus) neurohormonal neurohypophysis Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language