/ Dictionary / Index A axon: Meaning and Definition of Find definitions for: ax•on Pronunciation: (ak'son), [key] — n. the appendage of the neuron that transmits impulses away from the cell body. See diag. under. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: axon (Thesaurus) axolotl axoneme Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language