visibility
/ˌvɪzɪˈbɪlətɪ/noun
mass noun
1- the state of being able to see or be seen可见性, 能见性：
a reduction in police presence and visibility on the streets.
警察在大街上露面的减少。
1.1
- the distance one can see as determined by light and weather conditions能见度; 可见距离, 视程：
visibility was down to 15 yards.
能见度降到了15码。
1.2
- the degree to which something has attracted general attention; prominence关注程度; 明显度：
the issue began to lose its visibility.
对此问题的关注度开始下降。
词源
late Middle English: from French visibilite or late Latin visibilitas, from Latin visibilis （see VISIBLE）.