Dictionary

aquanaut

noun aqua·naut \ˈä-kwə-ˌnt, ˈa-, -ˌnät\

Definition of AQUANAUT

:  a scuba diver who lives and operates both inside and outside an underwater shelter for an extended period

Origin of AQUANAUT

Latin aqua + English -naut (as in aeronaut)
First Known Use: 1881

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