Wiktionary
neurohumor
n. (context biochemistry English) Any material produced in a neuron that activates a neighbouring neuron, muscle or gland; a neurotransmitter
Usage examples of "neurohumor".
This difference has caused some people to prefer to speak of acetylcholine as a neurohumor, "humor" being an old-fashioned medical term for a biological fluid (from a Latin word for "moisture").