—adj.
1 serving to assist or supplement; auxiliary.
2 (of a company) controlled by another.
3 (of troops): a paid for by subsidy. b hired by another nation.
—n. (pl. -ies)
1 a subsidiary thing or person; an accessory.
2 a subsidiary company.
Derivatives:
subsidiarily adv. subsidiarity n.
Etymology: L subsidiarius (as SUBSIDY)
Useful english dictionary. 2012.