noun
midget submarine
A small submarine, typically for one or two crew, used for special operations or research.
第二次世界大戦中、日本海軍は潜航艇を真珠湾攻撃に投入した。
During World War II, the Imperial Japanese Navy deployed midget submarines in the attack on Pearl Harbor.
noun
Obsolete term for a submarine in general; modern Japanese uses 潜水艦 (せんすいかん).
See also: 潜水艦
古い文献では「潜航艇」が潜水艦全般を指すことがある。
In old documents, 潜航艇 can refer to submarines in general.
Compound of 潜航 (せんこう, 'submerged navigation') and 艇 (てい, 'small boat').