excitatory

play
adjective ex·cit·ato·ry \ik-ˈsī-tə-ˌtȯr-ē\

Definition of excitatory

  1. :  exhibiting, resulting from, relating to, or producing excitement or excitation excitatory nerve fibers

First Known Use of excitatory

1803


Medical Dictionary

excitatory

play
adjective ex·cit·ato·ry \ik-ˈsīt-ə-ˌtōr-ē, -ˌtȯr-\

Medical Definition of excitatory

  1. 1:  tending to induce excitation (as of a neuron) excitatory substances excitatory and inhibitory pathways from the brain—W. G. Van der Kloot

  2. 2:  exhibiting, resulting from, related to, or produced by excitement or excitation an excitatory postsynaptic potential

Learn More about excitatory


Seen and Heard

What made you want to look up excitatory? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

conspicuously offensive

Get Word of the Day daily email!

Test Your Vocabulary

Time Traveler Quiz: Which Word Came First?

  • time-traveler-quiz-which-word-came-first
  • Which came first?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!