I. ˈansəˌlerē, ˈaan-, -nts-, -ri, US also & Brit usually anˈsilər- or aan- adjective
Etymology: Latin ancillaris of a maidservant, from ancilla + -aris -ar
: subordinate , subsidiary
the main factory and its ancillary plants
: auxiliary
surgery and ancillary treatment
: related
mathematics and ancillary subjects
: supplementary
the need for ancillary evidence
specifically : subordinate or auxiliary to a primary or principal legal document, proceeding, office, or officer
ancillary letters of administration
ancillary action
ancillary administrator
II. noun
( -es )
1. Britain : one who assists or serves another person
the bill proposed no more than a three-year experiment in training and employing ancillaries under the direction of the General Dental Council — Lancet
2. Britain : appurtenance , accessory
development of aircraft, aircraft engines, and ancillaries — Manchester Guardian Weekly