n. [ G. uhlan, Pol. ulan, hulan, from Turk. oglān a youth, lad; of Tartar origin. ] [ Written also ulan, and formerly hulan. ] 1. One of a certain description of militia among the Tartars. [ 1913 Webster ]

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. [ 1913 Webster ]