Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun blood-brain_barrier

1 sense of blood-brain barrier

Sense 1
blood-brain barrier -- (a mechanism that creates a barrier between brain tissues and circulating blood; serves to protect the central nervous system; "the brain was protected from the large molecules of the virus by the blood-brain barrier")
       => barrier -- (anything serving to maintain separation by obstructing vision or access)