Moor mo͝or/ noun plural noun: Moors a member of a northwestern African Muslim people of mixed Berber and Arab descent. In the 8th century they conquered the Iberian peninsula, but were finally driven out of their last stronghold in Granada at the end of the 15th century. Morse code ˌmôrs ˈkōd/ noun an alphabet or code in which letters are represented by combinations of long and short signals of light or sound.