
Tirailleur literally means a shooting skirmisher in French from tir—shot. The term dates back to the Napoleonic period where it was used to designate light infantry trained to skirmish ahead of the main columns. Subsequently `tirailleurs` was used by the French Army as a designation for infantry recruited in the French colonial territories dur.....
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http://en.wikipedia.org/wiki/Tirailleur

skirmisher; sharpshooter
Found on
http://phrontistery.info/t.html

• (n.) Formerly, a member of an independent body of marksmen in the French army. They were used sometimes in front of the army to annoy the enemy, sometimes in the rear to check his pursuit. The term is now applied to all troops acting as skirmishers.
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http://thinkexist.com/dictionary/meaning/tirailleur/
Ti`rail`leur' noun [ French, from
tirailler to skirmish, wrest, from
tirer to draw.]
(Mil.) Formerly, a member of an independent body of marksmen in the French army. They were used sometimes in front of the army to annoy the enemy, sometimes in the rear to check his pursuit. T...
Found on
http://www.encyclo.co.uk/webster/T/61

A French sharpshooter.
Found on
http://www.napoleonguide.com/glossary.htm

Originally tiraileurs were an independent body of marksmen in the French army that were used sometimes in front of the army to annoy the enemy, and sometimes in the rear to check his pursuit. The term later came to be applied to all troops acting as skirmishers.
Found on
http://www.probertencyclopaedia.com/browse/FT.HTM
No exact match found.