windsail

British  

/ ˈwɪndˌseɪl /

noun

1. a sail rigged as an air scoop over a hatch or companionway to catch breezes and divert them below

2. any of the vanes or sails of a windmill

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Example Sentences

I was definitely like, “Look. I got a skateboard and some trash bags, and it’s really windy. Can I make some sort of skateboard windsail contraption? I think we can make this work.”

From The Verge

“I got a skateboard and some trash bags, and it’s really windy. Can I make some sort of skateboard windsail contraption?”

From The Verge

That said, the significance of Cape Wind “has become less each year as wind and solar have exploded in the Northeast, and offshore wind is now also set to emerge shortly on the Eastern Seaboard,” said Mr. Bowles, who is now managing director of WindSail Capital Group, which invests in innovative energy projects.

From New York Times

The windsail had been devised for use on men-of-war, to preserve the health of the sailors, and had now been applied to the slave trade, although inconsistently.

From Slate

The windsail was a funnel tube, made of canvas and open at the top, hooped at various descending sections, and attached to the hatches to “convey a stream of fresh air downward into the lower apartments of a ship.”

From Slate