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gascheck

noun
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Definition of gascheck

1 : a device in a gun or chemical projector that prevents escape of gas
2 : a small copper cup fitted to the base of a lead bullet for small arms to prevent the melting of the base at the temperatures and pressures created by high-velocity smokeless powder

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“Gascheck.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/gascheck. Accessed 29 January 2020.

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