adjective.
Of or pertaining to neurochemistry, the study of the chemical basis of nerve and brain activity
noun.
A chemical substance that is involved in neural activity, such as a neurotransmitter
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
any organic substance that occurs in neural activity
Word Usage
"If a neurochemical abnormality in "amnesiac" fruit flies affects their memories, then there's hope that the same neurochemical in humans could be targeted to affectively treat our own memory disorders."