Definition of excitatory in English:

Share this entry

excitatory

Pronunciation: /ikˈsīdəˌtôrē/

adjective

chiefly Physiology
Characterized by, causing, or constituting excitation: the excitatory action of these impulses
More example sentences
  • Neurosteroids can therefore alter neuronal excitability very rapidly by binding to receptors for inhibitory or excitatory neurotransmitters at the cell membrane.
  • The NMDA receptor is activated by glutamate, the primary excitatory neurotransmitter in the brain.
  • The parasympathetic nervous system is excitatory and results in the contraction of smooth muscle, whereas the sympathetic system inhibits smooth muscle in the digestive system.

For editors and proofreaders

Syllabification: ex·cit·a·to·ry

Share this entry
 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.