/kon kwis"teuh dawr', kong-/ ; Sp. /kawng kees'tah dhawrdd"/ , n. , pl. conquistadors , Sp. conquistadores /-dhaw"rddes/ .
one of the Spanish conquerors of Mexico and Peru in the 16th century.
[ 1540-50; conquist ( ar ) to conquer (see CONQUEST) + -ador -ATOR ]