/ek'spi dish"euhn/ , n.
1. an excursion, journey, or voyage made for some specific purpose, as of war or exploration.
2. the group of persons, ships, etc., engaged in such an activity: a large expedition of scientists and military personnel.
3. promptness or speed in accomplishing something: He worked with great expedition.
[ 1400-50; late ME expedition- (s. of expeditio ) a (military) traveling. See EXPEDITE, -ION ]
Syn. 1. See trip. 3. quickness, dispatch, alacrity.