lancer

n. soldier on horseback armed with a lance

A lancer (uhlan) was a cavalry soldier who fought with a lance. Although cavalry had used lances for thousands of years, lancers in the modern European sense originated in Poland in the 18th century. Polish lancers serving with the French Army proved highly effective during the Napoleonic Wars, and by the end of the war all major European states had established lancer regiments of their own.
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Noun
1. (formerly) a cavalryman armed with a lance
(hypernym) cavalryman, trooper

v. send up, launch, shoot; issue, eject, send, emit; evolve, fling, throw; initiate, put up, bring out; throw away, cast, let fly; sling, slip

n. throwing, launching, sending out

(n.)
One who lances; one who carries a lance; especially, a member of a mounted body of men armed with lances, attached to the cavalry service of some nations.
  

(n.)
A set of quadrilles of a certain arrangement.
  

(n.)
A lancet.