Pronunciation: (ek"spi-dish'un), [key]
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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.