\Uh"lan\, n. [G. uhlan, Pol. ulan, hulan, from Turk.
ogl[=a]n a youth, lad; of Tartar origin.] [Written also
{ulan}, and formerly {hulan}.]
1. One of a certain description of militia among the Tartars.
2. (Mil.) One of a kind of light cavalry of Tartaric origin,
   first introduced into European armies in Poland. They are
   armed with lances, pistols, and sabers, and are employed
   chiefly as skirmishers.