Source : Webster's Revised Unabridged Dictionary (1913)

Negro \Ne"gro\, n.; pl. {Negroes}. [Sp. or Pg. negro, fr. negro
   black, L. niger; perh. akin to E. night.]
   A black man; especially, one of a race of black or very dark
   persons who inhabit the greater part of tropical Africa, and
   are distinguished by crisped or curly hair, flat noses, and
   thick protruding lips; also, any black person of unmixed
   African blood, wherever found.

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.

Source : WordNet®

Negro
     n : a person with dark skin who comes from Africa (or whose
         ancestors came from Africa) [syn: {Black}, {Black person},
          {blackamoor}, {Negroid}]