Battalion /(băt*tăl"yŭn; 106)/

Bat·tal·ion

Battalion

n.
  1. A body of troops; esp. a body of troops or an army in battle array. [archaic]
  2. An infantry command of two or more companies, which is the tactical unit of the infantry, or the smallest command which is self-supporting upon the battlefield, and also the unit in which the strength of the infantry of an army is expressed. (Mil.)

Battalion

v. t.
  1. To form into battalions. [R.]