- a variation of excitative.
excitatory
Americanadjective
Other Word Forms
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The strongest effects appeared in excitatory neurons, which stimulate activity in brain networks.
From Science Daily ● Jul. 25, 2026
One was a group of excitatory neurons that play a role in regulating mood and responding to stress.
From Science Daily ● Apr. 23, 2026
These excitatory signals encourage the growth of ‘dendritic spines,’ which can serve as new connection points between cells.
From The Wall Street Journal ● Mar. 17, 2026
This ultimately stimulates the release of more glutamate, which helps send excitatory signals between brain cells.
From The Wall Street Journal ● Mar. 17, 2026
The excitatory state then disappears, and the muscle is seen to relax into its normal form.
From Response in the Living and Non-Living by Sir Jagadis Chandra Bose
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
