Definition, Meaning & Synonyms
excitatory
Adjective
/ɪkˈsaɪtətɔːri/
Definition
Referring to a type of signal that increases the likelihood of a neuron firing an action potential.
Examples
- Excitatory neurotransmitters play a crucial role in sending signals across the brain.
- The excitatory effect of caffeine can lead to increased alertness and energy.
- In the spinal cord, excitatory signals are necessary for muscle contraction.
Meaning
Excitatory describes the action of stimulating or activating a response, especially in a nervous system context.
Synonyms
- Stimulating
- Promoting
- Activating
