oceanaut
ocea·naut
noun
1.
a skilled worker who can live in underwater installations and participate in scientific research
Origin
From ocean + -naut, modelled on astronaut.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.