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The Collaborative International Dictionary
Water shield

Water shield \Wa"ter shield`\ (Bot.) An aquatic American plant ( Brasenia peltata) having floating oval leaves, and the covered with a clear jelly.

Usage examples of "water shield".

To cut it short, at 3:11 today, while on watch, I saw Harper, with no apparent reasonable purpose in mind, pick up a wrench used only for operating the valves of the water shield and approach the trigger.