from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A tight-fitting permeable suit worn in cold water, as by skin divers, to retain body heat.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A close fitting, insulating garment usually made from neoprene or similar material designed to keep one warm during activities on or under water.
From wet + suit. (Wiktionary)