- (specialist)
the fact of being difficult to see through; the fact of being opaque 不透明性；模糊 sheets of frosted glass with varying degrees of opacity 不透明程度不同的磨砂玻璃片
- (formal)
the fact of being difficult to understand; the fact of being opaque 费解；难懂；模糊 the opacity of the poet’s language 诗人语言的晦涩
Word Originmid 16th cent.: from French opacité, from Latin opacitas, from opacus ‘darkened’.