CRAB n.
Crab apple, a small, sour apple, of several kinds; also, the tree which bears it; as, the European crab apple (Pyrus Malus var.sylvestris); the Siberian crab apple (Pyrus baccata); and the American (Pyrus coronaria). -- Crab grass. (Bot.) (a) A grass (Digitaria, or Panicum, sanguinalis); -- called also finger grass. (…