a close-fitting rubber garment worn by a skin diver in cold water that allows a thin, insulating layer of water to collect between the diver's skin and the suit in order to retain body heat.
Origin of wet suit
First recorded in 1950–55
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a close-fitting rubber suit used by skin divers, yachtsmen, etc, to retain body heat when they are immersed in water or sailing in cold weather
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012