frostbite -
The freezing, or effect of a freezing, of some part of the body.
Verb
frostbite -
To expose to the effect of frost, or a frosty air; to blight or nip with frost.
frostbite -
To engage in winter sailboating.
Wikipedia
Frostbite is the medical condition where localized damage is caused to skin and other tissues due to extreme cold. Frostbite is most likely to happen in body parts farthest from the heart and those with large exposed areas. The initial stages of frostbite are sometimes called "frostnip".