Medical Dictionary

berserk

adj ber·serk
\bə(r)-ˈsərk, ˌbər-, -ˈzərk, ˈbər-ˌ\

Medical Definition of BERSERK

:  marked by crazed or frenzied behavior suggestive of sudden mental imbalance—usually used in the phrase go berserk
berserk adverb

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