[1] : The Collaborative International Dictionary of English v.0.48

supplemental \sup`plemen"tal\, supplementary
\sup`plemen"tary\, a. cf. f. suppl'ementaire.
   added to supply what is wanted; additional; being, or serving
   as, a supplement; as, a supplemental law; a supplementary
   sheet or volume.
   1913 webster

   supplemental air physiol., the air which in addition to
      the residual air remains in the lungs after ordinary
      expiration, but which, unlike the residual air, can be
      expelled; reserve air.

   supplemental bill equity, a bill filed in aid of an
      original bill to supply some deffect in the latter, or to
      set forth new facts which can not be done by amendment.
      --burrill. --daniel.

   supplementary chords math., in an ellipse or hyperbola,
      any two chords drawn through the extremities of a
      diameter, and intersecting on the curve.
      1913 webster
see also:
supplemental air supplemental bill supplementary chords 

[2] : WordNet (r) 2.0

supplementary
     adj 1: added to complete or make up a deficiency; "produced
            supplementary volumes"; "additional reading" syn: supplemental,
             additional
     2: functioning in a subsidiary or supporting capacity; "the
        main library and its auxiliary branches" syn: auxiliary,
         subsidiary, supplemental
see also:
supplemental additional auxiliary subsidiary 

[3] : Moby Thesaurus II by Grady Ward, 1.0

47 moby thesaurus words for "supplementary":
   accessory, accidental, added, additional, adjunct, adscititious,
   adventitious, ancillary, annexed, another, appended, appurtenant,
   ascititious, attached, auxiliary, casual, circumstantial,
   collateral, contingent, contributory, excess, extra, extraneous,
   farther, fortuitous, fresh, further, incidental, inessential, more,
   new, nonessential, other, plus, secondary, spare, subordinate,
   subsidiary, superadded, superfluous, supernumerary, supervenient,
   supplemental, supportive, surplus, ulterior, unessential

Supplementary >> S Words
Supplementary, definition of term: Supplementary
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