astrogliosis

noun
as·​tro·​gli·​o·​sis | \ˌa-strə-ˌglī-ˈō-səs \
plural astroglioses\ -​ˈō-​ˌsēz \

Medical Definition of astrogliosis 

: excessive development of the astroglia : gliosis Astrocytes respond to all forms of CNS insults through a process referred to as reactive astrogliosis, which has become a pathological hallmark of CNS structural lesions.— Michael V. Sofroniew and Harry V. Vinters, Acta Neuropathologica, January 2010

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