adjective
- giving aid, support, service, etc.; serving to supplement; auxiliary
- being in a secondary or subordinate relationship
- of, constituting, or maintained by a subsidy or subsidies
Origin:
L subsidiarius < subsidium: see subsidy
noun pl. subsidiaries
a person or thing that is subsidiary; specif.,
- a company controlled by another company which owns all or a majority of its shares
- Music a subordinate theme