noun
Plimsoll line; load line
Maritime term for the marking on a ship's hull indicating the maximum safe loading depth. Also called Plimsoll mark.
船体に描かれた載貨喫水線が、積み過ぎを防ぐ目安になる。
The Plimsoll line painted on the hull serves as a guide to prevent overloading.
Compound of 載貨 (saika, 'loading cargo') + 喫水 (kissui, 'draft of a ship') + 線 (sen, 'line'). The term is a direct translation of the English 'load line' or 'Plimsoll line'.