Definition of neurochemical in US English:

neurochemical

adjective

  • Relating to chemical processes occurring in nerve tissue and the nervous system.

    ‘neurochemical pathways in the brain’
    ‘severe neurochemical imbalance’

noun

  • A neurotransmitter or other chemical substance that affects the nervous system.

    ‘we can monitor neurochemicals in the brain’

Pronunciation

neurochemical

/ˌn(j)ʊroʊˈkɛmək(ə)l//ˌn(y)o͝orōˈkemək(ə)l/