the GNU version of the Collaborative International Dictionary of English
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.
The Century Dictionary and Cyclopedia
n. A skirmisher.
n. In the French army, a sharp-shooter; a skirmisher; one of an organized body of light troops for skirmish duty.