1. (a.) Furnishing aid; assisting; auxiliary; helping; tributary; especially, aiding in an inferior position or capacity; as, a subsidiary stream.
2. (a.) of or pertaining to a subsidy; constituting a subsidy; being a part of, or of the nature of, a subsidy; as, subsidiary payments to an ally.
3. (n.) One who, or that which, contributes aid or additional supplies; an assistant; an auxiliary.
Thesaurus Entries
accessory, accident, accidental, addendum, addition, additional, adjunct, adjuvant, adscititious, adventitious, ancillary, appendage, appurtenance, appurtenant, ascititious, assistant, assisting, auxiliary, casual, circumstantial, collateral, contingency, contingent, contributory, dotal, dower, dowered, dowry, endowed, extra, fortuitous, fostering, happenstance, helping, incidental, inessential, instrumental, invested, mere chance, ministerial, ministering, ministrant, minor, nonessential, not-self, nurtural, nutricial, other, pensionary, secondary, serving, stipendiary, subordinate to, subservient, superadded, superaddition, superfluous, supervenient, supplement, supplemental, supplementary, tributary, unessential
