EX LEX. An outlaw (a term of law).
EXPANSION-VALVE. In the marine engine, a valve which shuts off the steam in its passage to the slide-valves, when the piston has travelled a certain distance in the cylinder, leaving the remaining part of the stroke to be performed by the expansion of the steam.
EXPEDIENT. A stratagem in warfare.
EXPEDITION. An enterprise undertaken either by sea or land, or both, against an enemy; it should be conducted with secrecy and rapidity of movement.
EXPENDED. Used up, consumed, or asserted to be so.
EXPENSE BOOKS. Accounts of the expenditure of the warrant officer's stores, attested by the signing officers.
EXPLOITING. Transporting trees or timber by a river. Exploit was an old verb meaning to perform.
EXPLORATOR. An examiner of a country. A scout.
EXPORT, To. To send goods or commodities out of a country, for the purposes of traffic, under the general name of exports.