[ an-suh-ler-ee or, esp. British, an-sil-uh-ree ]
/ ˈæn səˌlɛr i or, esp. British, ænˈsɪl ə ri /


subordinate; subsidiary.
auxiliary; assisting.

noun, plural an·cil·lar·ies.

something that serves in an ancillary capacity: Slides, records, and other ancillaries can be used with the basic textbook.

Origin of ancillary

1660–70; < Latin ancill(a) (see ancilla) + -ary; compare Latin ancillāris having the status of a female slave, with -āris -ar1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for ancillary

British Dictionary definitions for ancillary

/ (ænˈsɪlərɪ) /


auxiliary; supplementaryancillary services

noun plural -laries

a subsidiary or auxiliary thing or personthe company has an ancillary abroad

Word Origin for ancillary

C17: from Latin ancillāris concerning maidservants, from ancilla, diminutive of ancūla female servant
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for ancillary

[ ănsə-lĕr′ē ]


Relating to or being auxiliary or secondary.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.