Definition of "pony express" []

• A system of rapid mail transportation by relays of horses that operated from St. Joseph, Missouri, to Sacramento, California, in 1860-1861. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The news came by the pony express across the Plains to San Francisco, where it was still further magnified in republishing, and gained somewhat in Southern bias."
• "I saddled up an extra pony express horse, and arming myself with a good rifle and pair of revolvers, struck out for the foot hills of Laramie Peak for a bear-hunt."
• "Fifteen years before, I had ridden the pony express and driven the overland stages through this region, and the command was going into the same section of country where Wild Bill's expedition of stage-drivers and express-riders had recaptured from the Indians a large number of stolen stage-horses."