Source : Webster's Revised Unabridged Dictionary (1913)

Negro \Ne"gro\, a.
   Of or pertaining to negroes; black.

   {Negro bug} (Zo["o]l.), a minute black bug common on the
      raspberry and blackberry. It produced a very disagreeable
      flavor.

   {negro corn}, the Indian millet or durra; -- so called in the
      West Indies. see {Durra}. --McElrath.

   {Negro fly} (Zo["o]l.), a black dipterous fly ({Psila
      ros[ae]}) which, in the larval state, is injurious to
      carrots; -- called also {carrot fly}.

   {Negro head} (Com.), Cavendish tobacco. [Cant] --McElrath.

   {Negro monkey} (Zo["o]l.), the moor monkey.