| anencephalic | (adj) characterized by partial or total absence of a brain, Syn. anencephalous |
| anencephaly | (n) a defect in brain development resulting in small or missing brain hemispheres, Syn. anencephalia |
| panencephalitis | (n) diffuse inflammation of the entire brain |
| rubella panencephalitis | (n) a rare loss of mental and physical skills in adolescents; associated with the rubella virus |
| subacute sclerosing panencephalitis | (n) a rare chronic progressive encephalitis caused by the measles virus and occurring primarily in children and young adults; death usually occurs within three years; characterized by primary measles infection before the age of two years, Syn. Van Bogaert encephalitis, inclusion body encephalitis, Bosin's disease, subacute sclerosing leukoencephalitis, subacute inclusion body encephalitis, SSPE, Dawson's encephalitis, sclerosing leukoencephalitis |