Definition of neurotransmitter
: a substance (such as norepinephrine or acetylcholine) that transmits nerve impulses across a synapse
Recent Examples of neurotransmitter from the Web
These nerve poisons can inhibit an enzyme called cholinesterase, which breaks down a neurotransmitter called acetylcholine.
Neurotransmitters are highly important and mind-bendingly complex.
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First Known Use of neurotransmitter
NEUROTRANSMITTER Defined for English Language Learners
Definition of neurotransmitter for English Language Learners
medical : a substance in the body that carries a signal from one nerve cell to another
Learn More about neurotransmitter
Britannica.com: Encyclopedia article about neurotransmitter
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