Persian Empire

noun

1. the S Asian empire established by Cyrus the Great in the 6th century bc and overthrown by Alexander the Great in the 4th century bc . At its height it extended from India to Europe

Persian Empire

1. An empire in western Asia in ancient times. The Persians, under the kings Darius and Xerxes, attempted to conquer Greece several times in the fifth century b.c. but were defeated in the Battle of Marathon and in several other land and sea battles.