underwater : Idioms & Phrases
naval underwater warfare center
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noun the agency that provides scientific and engineering and technical support for submarine and undersea warfare systems
NUWC.
WordNet
underwater archaeology
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noun the archeology of underwater sites
underwater archaeology; marine archeology; marine archaeology.
WordNet
underwater archeology
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noun the archeology of underwater sites
underwater archaeology; marine archeology; marine archaeology.
WordNet
underwater diver
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noun someone who works underwater
frogman; diver.