'Expeditionary' definitions:
Definition of 'expeditionary'
(from WordNet)
adjective
(used of military forces) designed for military operations abroad; "the French expeditionary force in Indochina"
Definition of 'Expeditionary'
From: GCIDE
- Expeditionary \Ex`pe*di"tion*a*ry\, a. Of or pertaining to an expedition; as, an expeditionary force. [1913 Webster]