gap junction(redirected from communicating junction)
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An intercellular network of protein channels that facilitates the cell-to-cell passage of ions, hormones, and neurotransmitters.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Biol. a structure consisting of a series of channels extending across the gap between two cells, allowing the passage of ions, small molecules, etc.
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