The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A city of northwest Iran northwest of Tehran. Founded in the fourth century A.D., it was captured by the Arabs in 644 and was the capital of Persia from 1548 to 1598. Population: 355,000.