Injured or damaged by exposure to severe freezing cold that has killed or harmed skin and tissue.
The past participle of 'frostbite' (as a verb), using the older English '-en' ending (like 'bitten,' 'written,' 'spoken'). This form emphasizes the completed, permanent state of damage.
Notice 'frostbitten' keeps the old '-en' ending instead of just being 'frostbited'—English has lots of irregular verbs with these archaic forms because they're ancient words that didn't modernize with the rest of the language.
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