matweed Meaning, Definition & Usage

Mat"weed` noun
Definitions
  1. (Bot.) A name of several maritime grasses, as the sea sand-reed (Ammophila arundinacea) which is used in Holland to bind the sand of the seacoast dikes (see Beach grass, under Beach); also, the Lygeum Spartum, a Mediterranean grass of similar habit.

Webster 1913