Dictionary
aux
Pronunciation: (ō), [key] French.
pl. of
au.AUX
Ling.
auxiliary verb: used to represent a phrase structure constituent that may include such verbal elements as tense and mood markers as well as auxiliaries.
Also,Auxaux-
var. of
auxo-, esp. before a vowel:
auxin. aux.
auxiliary; auxiliaries.
Also,aux,auxil.Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.