Expedition \Ex`pe*di"tion\, n. [L. expeditio: cf.F. exp['e]dition.]

1. The quality of being expedite; efficient promptness; haste; dispatch; speed; quickness; as to carry the mail with expedition.

With winged expedition

Swift as the lightning glance. ?

2. A sending forth or setting forth the execution of some object of consequence; progress.

Putting it straight in expedition. ?

3. An important enterprise, implying a change of place; especially, a warlike enterprise; a march or a voyage with martial intentions; an excursion by a body of persons for a valuable end; as, a military, naval, exploring, or scientific expedition; also, the body of persons making such excursion.

The expedition miserably failed. --Prescott.

Narrative of the exploring expedition to the Rocky Mountains. --J. C. Fremont.

Source: Webster's Revised Unabridged Dictionary (1913)