Definition of "berserker" [berserker]

• One of a band of ancient Norse warriors legendary for their savagery and reckless frenzy in battle. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Battleprep is often referred to as a berserker state, but that is only partially correct."
• "“A berserker is a mortal born with uncommon speed and strength,” she said."
• "He could feel what the Nordic tribes called the berserker rage gaining control of him and he fought it off, not wanting to lose that control."