aquanaut

[ ak-wuh-nawt, -not, ah-kwuh- ]

noun

1. an undersea explorer, especially one who skin-dives from or lives for an extended period of time in a submerged dwelling.
2. a skin-diver.

aquanaut

/ ˈækwənɔːt /

noun

1. a person who lives and works underwater
2. a person who swims or dives underwater

Word History and Origins

Origin of aquanaut¹

1880–85; aqua- + -naut, on the model of aeronaut, astronaut, etc.

Word History and Origins

Origin of aquanaut¹

C20: from aqua + -naut, as in astronaut