hydrocephalus
noun [ U ] medical specialized uk/ˌhaɪ.drəˈsef.ə.ləs/ us/ˌhaɪ.drəˈsef.ə.ləs/ (also water on the brain)
脑积水
an abnormal increase in the amount of fluid in the skull that results in an increase in pressure inside the skull and an increase in the size of the head
Congenital hydrocephalus is present at birth and can result from events during the development of the foetus. 先天性脑积水在出生时就已发生，可能是由于胚胎发育中的事件造成的。