CRAB n.
s); 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. (b) A grass of the genus Eleusine (E. Indica); -- called also dog's-tail grass, wire grass, etc. -- Crab louse (Zoöl.), a species of lou…