noun
Technical term used in optics, meteorology, and related fields to describe the distance at which an object can be clearly seen.
霧のため視度が著しく低下した。
Visibility dropped significantly due to fog.
Compound of 視 (shi, 'seeing') and 度 (do, 'degree'), literally 'degree of seeing'. The exact historical derivation is uncertain; the spelling is conventionally associated with the meaning of visibility.