Definition of "anacharis" []

• A freshwater weed of the frog's-bit family (Hydrocharidaceae), native to America; the waterweed or water thyme. (noun)

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• "We had worked our way to a shallow end of the lake, where the submarine plough had not ventured, and, observing one clear space in a waste of anacharis, I threw into and spun across it, moving a fish that went into the weeds beyond."
• "The lake, if left to itself, would have been choked with anacharis; but the proprietor, by means of a machine driven by steam -- a sort of submarine plough -- kept certain portions clear."
• "It is not on anything else in the tank (which includes a plastic plant, gravel, and a couple bunches of anacharis), only the bamboo branches."