Meaning of AUXILIARY in English

AUXILIARY

I. aux ‧ il ‧ ia ‧ ry 1 /ɔːɡˈzɪljəri, ɔːk- $ ɒːɡˈzɪljəri, -ˈzɪl ə ri/ BrE AmE adjective

[ Date: 1600-1700 ; Language: Latin ; Origin: auxiliaris , from auxilium 'help' ]

1 . auxiliary workers provide additional help for another group of workers:

an auxiliary nurse

auxiliary staff

2 . an auxiliary motor, piece of equipment etc is kept ready to be used if the main one stops working properly:

an auxiliary power supply

auxiliary equipment

II. auxiliary 2 BrE AmE noun ( plural auxiliaries ) [countable]

1 . a worker who provides additional help for another group of workers:

a nursing auxiliary

2 . an auxiliary verb:

a modal auxiliary

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.