Definition of "venthole" [vent•hole]

• A hole through which gas or air can escape. (noun)

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• "Perkins had reloaded the volley gun and Harper now fired it again just as a musket flashed from the equivalent venthole in Donaju's barracks."
• "Harper plucked the oilcloth free and jammed the burning concoction of dripping pitch and straw on to the venthole."
• "There had been no time to run the one remaining cannon into a firing position and Harper, regretting the lost chance, went to check that the quickfuse still led through the cleared venthole to the charge."