vitreous humour
noun [ U ] anatomy UK specialized (US vitreous humor) uk/ˌvɪt.ri.əs ˈhjuː.mər/ us/ˌvɪt.ri.əs ˈhjuː.mɚ/
玻璃体（晶状体与视网膜之间的无色透明胶状体）
the thick, clear liquid substance inside the eye between the lens at the front and the retina at the back