astrogliosis

noun

as·​tro·​gli·​o·​sis ˌa-strə-ˌglī-ˈō-səs 

plural astroglioses -ˈō-ˌsēz 

: 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