What do a.m. and p.m. stand for?


[ak-son] /ˈæk sɒn/
Cell Biology. the appendage of the neuron that transmits impulses away from the cell body.
Also, axone
[ak-sohn] /ˈæk soʊn/ (Show IPA)
Origin of axon
1835-45; < New Latin < Greek áxōn an axle, axis; akin to Latin axis
Related forms
[ak-suh-nl, ‐son-l] /ˈæk sə nl, ‐ˌsɒn l/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for axon
  • There may be damage to the axon part of the nerve cell, which interferes with nerve signals.
  • The junction between an axon and a dendrite is called a synapse.
  • While a myelin coating greatly accelerates an axon's bandwidth, it also inhibits the growth of new branches from the axon.
  • Down to a neuron's axon and molecules, the nerve cell is designed to be an information carrier.
  • By studying squid, we've learned that inside the axon of a human neuron is a city that never sleeps.
  • The amount of interactions to the dendrites and body, and its frequencies, shape the type and rate of firing of the axon.
  • Small multipolar cell, in which the axon quickly divides into numerous branches.
  • Each triangular cell gives off two or three dendrites, from one of which the axon arises.
  • Instead of recoiling smoothly, the axon develops kinks.
  • As the axon reaches its designated muscle, it branches out, and each tip extends to an individual muscle fiber.
British Dictionary definitions for axon


the long threadlike extension of a nerve cell that conducts nerve impulses from the cell body Compare dendrite
Derived Forms
axonal, adjective
Word Origin
C19: via New Latin from Greek: axis, axle, vertebra
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for axon

"axis of the vertebrate body," 1842, from Greek axon "axis" (see axis).

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
axon in Medicine

axon ax·on (āk'sŏn') or ax·one (-sōn')
The usually long process of a nerve fiber that generally conducts impulses away from the body of the nerve cell.

ax'on·al (āk'sə-nəl, āk-sŏn'əl) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
axon in Science
The long portion of a neuron that conducts impulses away from the body of the cell. Also called nerve fiber.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
axon in Culture

axon definition

The part of a nerve cell or neuron that transfers a nerve impulse from the nerve cell body to a synapse with another cell. (See action potential.) Depending on the location of the cell, the length of an axon can vary widely. In some cases (such as the axons that form the spinal cord), they may be several feet long.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for axon

Many English speakers likely know this word

Word Value for axon

Scrabble Words With Friends

Nearby words for axon