Source : Webster's Revised Unabridged Dictionary (1913)

Moro \Mo"ro\, n. [Cf. It. mora mulberry, L. morum.] (Med.)
   A small abscess or tumor having a resemblance to a mulberry.
   --Dunglison.

Moros \Mo"ros\, n. pl.; sing. {Moro}. [Sp., pl. of Moro Moor.]
   (Ethnol.)
   The Mohammedan tribes of the southern Philippine Islands,
   said to have formerly migrated from Borneo. Some of them are
   warlike and addicted to piracy.

Source : WordNet®

Moro
     n : a member of the predominantly Muslim people in the southern
         Philippines