from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A wave of physical and chemical excitation along a nerve fiber in response to a stimulus, accompanied by a transient change in electric potential in the membrane of the fiber.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The signal transmitted along a nerve fibre, either in response to a stimulus (such as touch, pain or heat), or as an instruction (such as causing a muscle to contract).
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the electrical discharge that travels along a nerve fiber
Sorry, no etymologies found.