water lettuce
noun
a floating aquatic plant, Pistia stratiotes, of the arum family, having a rosette of thick, spongy leaves.
Origin of water lettuce
First recorded in 1865–70
Words nearby water lettuce
water jacket,
water jump,
water key,
water leaf,
water lemon,
water lettuce,
water level,
water lily,
water lily family,
water lily tulip,
water line
Example sentences from the Web for water lettuce
Like the lake, it has great patches of water-lettuce, which in some places almost bridge the channel.
This is principally formed of the water-lettuce, or Pistia, an aquatic plant with long roots which descend to the bottom.