frogman

[frog-man, -muhn, frawg-]
noun, plural frogmen [frog-men, -muhn] .
a swimmer specially equipped with air tanks, wet suit, diving mask, etc., for underwater demolition, salvage, military operations, scientific exploration, etc.

Origin:
1940–45; frog1 + man1

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Collins
World English Dictionary
frogman (ˈfrɒɡmən)
 
n , pl -men
a swimmer equipped with a rubber suit, flippers, and breathing equipment for working underwater

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

frogman
"scuba diver in rubber suit," 1945, from frog + man.
Online Etymology Dictionary, © 2010 Douglas Harper
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Encyclopedia Britannica
Encyclopedia

frogman

member of a U.S. naval underwater demolition team. In World War II their efforts reduced troop losses and facilitated the landing of men and supplies on enemy shores. Before an amphibious landing was made, frogmen reconnoitred the beach area. They measured the actual depths of the water, detected natural or man-made obstructions under the surface, and observed the enemy's defensive positions close to the water's edge. One of their most important functions was to destroy dangerous underwater obstructions. Frogmen were carefully chosen volunteers who were intensively trained and worked without weapons. After the war they performed research and rescue operations and served in Korea, Vietnam, and on other expeditions.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
Clothed in rubber frogman suit, he wears a snorkel mask as he pushes the underwater motion picture camera ahead of him.
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