/ Dictionary / Index N neurochemical: Meaning and Definition of Find definitions for: neu•ro•chem•i•cal Pronunciation: (noor"ō-kem'i-kul, nyoor"-), [key] — adj. of or pertaining to neurochemistry. (of a drug or other substance) affecting the nervous system. —n. a drug or other substance that affects the nervous system. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: neurochemical (Thesaurus) neuroblastoma neurochemistry Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language