gap junction definition by American Heritage Dictionary
nounThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
An intercellular network of protein channels that facilitates the cell-to-cell passage of ions, hormones, and neurotransmitters.
gap junction - Medical Definition
A gap between adjacent cell membranes containing very fine latticelike connections that allow physiologic components to pass directly from cell to cell. Also called nexus.