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oceanaut

American  
[oh-shuh-nawt, -not] / ˈoʊ ʃəˌnɔt, -ˌnɒt /

noun

  1. aquanaut.

Etymology

Origin of oceanaut

1960–65, blend of ocean and aquanaut

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.