Chemical messenger in the nervous system that transmits signals between neurons.

तंत्रिका संचारक

English Usage: Serotonin is a neurotransmitter that contributes to the feeling of well-being.

Hindi Usage: सेरोटोनिन एक तंत्रिका संचारक है जो कल्याण की भावना में योगदान करता है.