n.
Function: noun
Date: 14th century
1 a : a plant material (as straw) used as a sheltering cover especially of a house b : a sheltering cover (as a house roof) made of such material c : a mat of undecomposed plant material (as grass clippings) accumulated next to the soil in a grassy area (as a lawn)
2 : something likened to the thatch of a house especially : the hair of one's head