Medical Dictionary

blood–brain barrier

noun

Definition of BLOOD-BRAIN BARRIER

:  a naturally occurring barrier created by the modification of brain capillaries (as by reduction in fenestration and formation of tight cell-to-cell contacts) that prevents many substances from leaving the blood and crossing the capillary walls into the brain tissues—abbreviation BBB
March 27, 2015
quiescent Hear it
Tranquilly at rest or causing no trouble
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