English Lexicon

Neurotransmitter

/ˌnʊə.rəʊ.trænzˈmɪt.ər/
nounCEFR C1 (Advanced)Top #8500 frequency
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Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    A endogenous chemical messenger that enables neurotransmission by carrying signals across a chemical synapse from one neuron to another target cell.

    "Serotonin is a key neurotransmitter that regulates mood, appetite, and sleep."
  2. 2

    Any substance released by nerve endings to transmit an impulse to another nerve structure, muscle, or gland.

    "An imbalance of specific neurotransmitters in the brain can significantly impact mental health."

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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from the combining form 'neuro-' (from Greek neuron, meaning 'nerve') and 'transmittere' (Latin, meaning 'to send across' or 'pass over'). Coined in the mid-20th century with the advancement of modern neurophysiology to describe endogenous chemicals that transmit signals across a synapse.

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