hydronaut

[hahy-druh-nawt, -not]

Phonetic (Standard)IPA

noun

a person trained to work in deep-sea vessels for research and rescue purposes.

hydronaut

/ ˈhaɪdrəʊˌnɔːt /

noun

navy a person trained to operate deep submergence vessels

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Word History and Origins

Origin of hydronaut¹

An Americanism dating back to 1965–70; hydro- ¹ + (aero)naut

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Word History and Origins

Origin of hydronaut¹

C20: from Greek, from _hydro- + -naut, as in aeronaut, astronaut

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

On Monday, it was piloted by Anatoly Sagalevich, the director of the technical council of the preservation foundation, who invited Cameron on his first visit to Lake Baikal and gave him a hardy "hydronaut's" watch.