water shield

American  

noun

1. Also called water target.  an aquatic plant, Brasenia schreberi, of the water lily family, having purple flowers, floating, elliptic leaves, and a jellylike coating on the underwater stems and roots.

2. a fanwort, especially Cabomba caroliniana.

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water shield British  

noun

1. a North American nymphaeaceous plant, Brasenia schreberi, with floating oval leaves and purple flowers

2. any of several similar and related plants of the genus Cabomba

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Etymology

Origin of water shield

First recorded in 1810–20

Example Sentences

If the material will be ok with it — don't forget about that handy spot test — using a protectant like the Scotchgard Fabric Water Shield to keep liquid-based stains from ever settling in on your furniture could be a great first line of defense.

From Salon

“A roof is only as good as all the components: underlayment, shingles, flashing, vents and, in cold-weather locations, ice and water shield.”

From Washington Post

Small plates arrive one after the next, featuring complex dishes with clean flavors, including the Jell-O-like water shield and briny snails, pickled plum in bonito broth and egg custard soup with rockfish.

From New York Times

Grace Ice & Water Shield is labeled as suitable for sticking to concrete and costs $138 for a roll 36 inches wide by 75 feet long at Home Depot.

From Washington Post

They’ll also replace a water shield with a better one.

From Washington Times