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gap junction

noun Cell Biology.
  1. a linkage of two adjacent cells consisting of a system of channels extending across a gap from one cell to the other, allowing the passage of ions and small molecules.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

gap junction in Medicine

gap junction

n.
  1. A gap between adjacent cell membranes containing very fine latticelike connections that allow physiologic components to pass directly from cell to cell.nexus
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.