mat(redirected from mat spurge)
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a quaking bog, a growth of vegetation floating on the surface of a body of water. It is formed primarily of mosses or other swamp plants (for example, sedges and buckbean). As the thickness of the mat increases (up to 1 to 2 m), its lower layers decay and fall to the bottom, forming peat.
in sports, a soft padding that protects athletes against injuries when they fall from equipment or execute jumps.