blood-brain barrier

== English == === Noun === blood-brain barrier (plural blood-brain barriers) (anatomy) A structure in the central nervous system (CNS) that keeps various substances found in the bloodstream out of the brain while allowing in the substances essential to metabolic function, e.g. oxygen. ==== Synonyms ==== hematoencephalic barrier (rare) BBB ==== Holonyms ==== central nervous system ==== Translations ====