Definify.com
Webster 1913 Edition
Auxiliary
Aux-il′ia-ry
(?; 106)
, Adj.
[L.
auxiliarius
, fr. auxilium
help, aid, fr. augere
to increase.] Conferring aid or help; helping; aiding; assisting; subsidiary; as auxiliary troops.
Aux-il′ia-ry
,Noun.
pl.
Auxiliaries
. 1.
A helper; an assistant; a confederate in some action or enterprise.
2.
(Mil.)
pl.
Foreign troops in the service of a nation at war; (rarely in
s
), a member of the allied or subsidiary force. ing.
3.
(Gram.)
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.4.
(Math.)
A quantity introduced for the purpose of simplifying or facilitating some operation, as in equations or trigonometrical formulæ.
Math. Dict.
Webster 1828 Edition
Auxiliary
AUXIL'IARY
,Adj.
Helping; aiding; assisting; subsidiary; conferring aid or support by joint exertion, influence or use; as auxiliary troops.