Auxiliary /(?; 106)/

Aux·il·ia·ry

Auxiliary

a.
  1. Conferring aid or help; helping; aiding; assisting; subsidiary; as auxiliary troops.

Phrases & Compounds
Auxiliary scales
the scales of relative or attendant keys. See under Attendant, a.
Auxiliary verbs
See Auxiliary, n., 3.

Auxiliary

n.

pl. Auxiliaries

  1. A helper; an assistant; a confederate in some action or enterprise.
  2. Foreign troops in the service of a nation at war; (rarely in sing.), a member of the allied or subsidiary force. (Mil.)
  3. A verb which helps to form the voices, modes, and tenses of other verbs; -- called, also, an auxiliary verb; as, have, be, may, can, do, must, shall, and will, in English; être and avoir, in French; avere and essere, in Italian; estar and haber, in Spanish. (Gram.)
  4. A quantity introduced for the purpose of simplifying or facilitating some operation, as in equations or trigonometrical formulæ. (Math.)