sub·sid·i·ary /səbˈsɪdiˌɛri, ˈsɪdəri/
  子公司,附加物,輔助者(a.)補助的,次要的,津貼的
  Sub·sid·i·a·ry a.
  1. Furnishing aid; assisting; auxiliary; helping; tributary; especially, aiding in an inferior position or capacity; as, a subsidiary stream.
     Chief ruler and principal head everywhere, not suffragant and subsidiary.   --Florio.
     They constituted a useful subsidiary testimony of another state of existence.   --Coleridge.
  2. 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.
     George the Second relied on his subsidiary treaties.   --Ld. Mahon.
  Sub·sid·i·a·ry, n.; pl. Subsidiaries  One who, or that which, contributes aid or additional supplies; an assistant; an auxiliary.
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  subsidiary
       adj 1: relating to something that is added but is not essential;
              "an ancillary pump"; "an adjuvant discipline to forms
              of mysticism"; "The mind and emotions are auxilliary
              to each other" [syn: accessory, adjunct, ancillary,
               adjuvant, appurtenant, auxiliary]
       2: functioning in a subsidiary or supporting capacity; "the
          main library and its auxiliary branches" [syn: auxiliary,
           supplemental, supplementary]
       n 1: an assistant subject to the authority or control of another
            [syn: subordinate, underling, foot soldier]
       2: a company that is completely controlled by another company
          [syn: subsidiary company]