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
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
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
Current treatments for attention disorders typically increase excitatory signaling in prefrontal brain circuits using stimulant medications.
From Science Daily • Jan. 2, 2026
When a plant is stimulated at any point, a molecular disturbance—the excitatory wave—is propagated outwards from the point of its initiation.
From Response in the Living and Non-Living by Bose, Jagadis Chandra, Sir
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.
