To save this word, you'll need to log in.
ex·ci·tor | \ ik-ˈsī-tər 
\
\Definition of excitor
: an afferent nerve arousing increased action of the part that it supplies
Keep scrolling for more
Keep scrolling for more
More Definitions for excitor
excitor
nounex·ci·tor | \ -ˈsīt-ər \
\Medical Definition of excitor
: an afferent nerve arousing increased action of the part that it supplies
Comments on excitor
What made you want to look up excitor? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Words for Summer: A Quiz
- Which of the following words means “of or relating to summer”?
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
- Words for Summer: A Quiz
Test your knowledge of words related to the season of longer days and vacations.
Take the quiz - A More Exception(al) Quiz
Which of these things doesn't belong?
Take the quiz - Spell It
Can you spell these 10 commonly misspelled words?
Take the quiz - Syn City
Build a city of skyscrapers—one synonym at a time.
Play the game
Share excitor
Time Traveler for excitor
The first known use of excitor was in 1816
See more words from the same year