干かん潮ちょう線せん

noun

low-water mark; low-tide line

Refers to the line on a shore marking the lowest point reached by the tide. Often used in geographical or nautical contexts.

See also: 満潮線

• 干かん潮ちょう線せんより下したの部ぶ分ぶんは、潮しおが引ひくと現あらわれる。

  The area below the low-tide line appears when the tide goes out.