noun, plural frog·men [frog-men, -muh n] /ˈfrɒgˌmɛn, -mən/.
- a swimmer specially equipped with air tanks, wet suit, diving mask, etc., for underwater demolition, salvage, military operations, scientific exploration, etc.
noun plural -men
- a swimmer equipped with a rubber suit, flippers, and breathing equipment for working underwater
“scuba diver in rubber suit,” 1945, from(n.1) + (n.).