Medical Dictionary

blood–brain barrier

noun

Medical 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
April 19, 2015
desiccate Hear it
to dry up or become dried up
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