Definition of Tight junction

1. Noun. (biology) An intercellular junction between epithelial cells whose membranes join together forming a virtual impermeable barrier to fluid ¹

¹ Source: wiktionary.com

Medical Definition of Tight junction

1. Specialised intercellular junction in which the two plasma membranes are separated by only 1-2nm. Found near the apical surface of cells in simple epithelia, forms a sealing gasket around the cell. Prevents fluid moving through the intercellular gap and the lateral diffusion of intrinsic membrane proteins between apical and baso lateral domains of the plasma membrane. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Tight Junction

tighs
tight
tight-fisted
tight-fitting
tight-knit
tight-laced
tight-lipped
tight-lippedness
tight-rope
tight as a duck's arse
tight as a tick
tight end
tight ends
tight five
tight fives
tight junction (current term)
tight junctions
tight lips
tight loop
tight loops
tight money
tight rope
tight ship
tight ships
tight spot
tighten
tighten one's belt
tighten the purse strings

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