Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Medical Dictionary

noun neu·ron \ˈn(y)ü-ˌrän, ˈn(y)u̇(ə)r-ˌän\

Medical Definition of neuron

  1. :  one of the cells that constitute nervous tissue, that have the property of transmitting and receiving nerve impulses, and that are composed of somewhat reddish or grayish protoplasm with a large nucleus containing a conspicuous nucleolus, irregular cytoplasmic granules, and cytoplasmic processes which are highly differentiated frequently as multiple dendrites or usually as solitary axons and which conduct impulses toward and away from the cell body :  nerve cell 1

neuronal \ˈn(y)u̇r-ən-əl, n(y)u̇-ˈrōn-əl\play play also neuronic \n(y)u̇-ˈrän-ik\play adjective


Illustration of neuron

Variants of neuron

also neurone \-ˌrōn, -ˌōn\play


Seen and Heard

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

WORD OF THE DAY

the Celtic May Day festival

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image567572573

Which of these is a synonym of unctuous?

prompt oily maudlin angry
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ