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.
One was a group of excitatory neurons that play a role in regulating mood and responding to stress.
From Science Daily • Apr. 23, 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
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 researchers found that the most significant gene disruptions occur in excitatory neurons -- the nerve cells that send activating signals -- where nearly 6,000 cause-and-effect interactions revealed extensive genetic rewiring as Alzheimer's progresses.
From Science Daily • Feb. 15, 2026
Their special function seems still somewhat obscure, and Boudier suggests that they may be excitatory organs for the dehiscence of the asci.
From Fungi: Their Nature and Uses by Cooke, M. C. (Mordecai Cubitt)
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.
