noun
scuba; aqualung
Rare term for scuba diving equipment; modern Japanese almost always uses スキューバ or アクアラング instead.
See also: スキューバ
「水中肺」は、スキューバダイビングの器材を指す古い言い方だ。
水中肺 is an old term for scuba diving equipment.
Compound of 水中 (underwater) and 肺 (lung), literally 'underwater lung'. The exact origin is uncertain, but it likely arose as a direct translation of 'aqualung'.