1. Of secondary importance: “For Degas, sculpture was never more than ancillary to his painting” (Herbert Read). 2. Auxiliary; helping: an ancillary pump.
NOUN:
Inflected forms: pl. an·cil·lar·ies 1. Something, such as a workbook, that is subordinate to something else, such as a textbook. 2.Archaic A servant.
ETYMOLOGY:
From Latin ancilla, maidservant, feminine diminutive of anculus, servant. See kwel-1 in Appendix I.
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