type of oar
Rare historical term for a specific kind of oar used in traditional Japanese boats. Not in modern everyday use.
An uchigai is a type of oar used on traditional Japanese boats.
Rare kanji spelling for a specialized historical term.
Variant kanji spelling, also rare.
Compound of 打ち (uchi, 'striking') + 櫂 (kai, 'oar'). The exact historical derivation is uncertain; the term likely describes a particular rowing technique or oar design.