- mushroom ventilator
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a ventilator having at the top of a vertical shaft a broad rounded cap that can be screwed down to close it.
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Universalium. 2010.
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Universalium. 2010.
mushroom ventilator — noun : a ship s ventilator with a curved hood that may be raised or lowered to regulate the air in cabins below deck * * * a ventilator having at the top of a vertical shaft a broad rounded cap that can be screwed down to close it … Useful english dictionary
List of Latin words with English derivatives — This is a list of Latin words with derivatives in English (and other modern languages). Ancient orthography did not distinguish between i and j or between u and v. Many modern works distinguish u from v but not i from j. In this article both… … Wikipedia
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