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bombardier beetle

noun
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Definition of bombardier beetle

: any of numerous carabid beetles of Brachinus or related genera that when disturbed discharge audibly a pungent and corrosive vapor from the anal glands

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“Bombardier beetle.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/bombardier%20beetle. Accessed 21 January 2020.

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