Pronunciation: (pûr'shing or, for 2, -zhing),[key] —n. 1. John Joseph(“Blackjack”), 1860–1948, U.S. general: commander of the American Expeditionary Forces in World War I.
2. Mil. a. a 46-ton (42 m ton) U.S. heavy tank of 1944–52, with a five-man crew and a 90mm gun.
b. a two-stage surface-to-surface ballistic missile.