/ Dictionary / Index N neuromodulator: Meaning and Definition of Find definitions for: neu•ro•mod•u•la•tor Pronunciation: (noor"ō-moj'u-lā"tur), [key] — n. Biochem. any of various substances, as certain hormones and amino acids, that influence the function of neurons but do not act as neurotransmitters. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. neuromechanism neuromotor Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language