Uh"lan (?), n. [G. uhlan, Pol. ulan, hulan, from Turk. oglan 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.
© Webster 1913.