Japanese edit

Kanji in this term
おお
Grade: 1
しお
Grade: 6

Grade: 4

Etymology edit

From (ō, big; large) and 潮差 (chōsa, tidal range).

Noun edit

(おお)(しお)() or 大潮差(オオシオサ) (ōshiosa

  1. spring range
  2. spring tide range