The Collaborative International Dictionary of English v.0.48:

German \Ger"man\, n.; pl. Germans[L. Germanus, prob. of Celtis
   origin.]
   1. A native or one of the people of Germany.
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   2. The German language.
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   3.
      (a) A round dance, often with a waltz movement, abounding
          in capriciosly involved figures.
      (b) A social party at which the german is danced.
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   High German, the Teutonic dialect of Upper or Southern
      Germany, -- comprising Old High German, used from the 8th
      to the 11th century; Middle H. G., from the 12th to the
      15th century; and Modern or New H. G., the language of
      Luther's Bible version and of modern German literature.
      The dialects of Central Germany, the basis of the modern
      literary language, are often called Middle German, and the
      Southern German dialects Upper German; but High German is
      also used to cover both groups.

   Low German, the language of Northern Germany and the
      Netherlands, -- including Friesic; Anglo-Saxon or
      Saxon; Old Saxon; Dutch or Low Dutch, with its
      dialect, Flemish; and Plattdeutsch (called also Low
      German), spoken in many dialects.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Dutch \Dutch\, a. [D. duitsch German; or G. deutsch, orig.,
   popular, national, OD. dietsc, MHG. diutsch, tiutsch, OHG.
   diutisk, fr. diot, diota, a people, a nation; akin to AS.
   pe['o]d, OS. thiod, thioda, Goth. piuda; cf. Lith. tauta
   land, OIr. tuath people, Oscan touto. The English have
   applied the name especially to the Germanic people living
   nearest them, the Hollanders. Cf. Derrick, Teutonic.]
   Pertaining to Holland, or to its inhabitants.
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   Dutch auction. See under Auction.

   Dutch cheese, a small, pound, hard cheese, made from skim
      milk.

   Dutch clinker, a kind of brick made in Holland. It is
      yellowish, very hard, and long and narrow in shape.

   Dutch clover (Bot.), common white clover (Trifolium
      repens), the seed of which was largely imported into
      England from Holland.

   Dutch concert, a so-called concert in which all the singers
      sing at the same time different songs. [Slang]

   Dutch courage, the courage of partial intoxication. [Slang]
      --Marryat.

   Dutch door, a door divided into two parts, horizontally, so
      arranged that the lower part can be shut and fastened,
      while the upper part remains open.

   Dutch foil, Dutch leaf, or Dutch gold, a kind of brass
      rich in copper, rolled or beaten into thin sheets, used in
      Holland to ornament toys and paper; -- called also Dutch
      mineral, Dutch metal, brass foil, and bronze leaf.


   Dutch liquid (Chem.), a thin, colorless, volatile liquid,
      C2H4Cl2, of a sweetish taste and a pleasant ethereal
      odor, produced by the union of chlorine and ethylene or
      olefiant gas; -- called also Dutch oil. It is so called
      because discovered (in 1795) by an association of four
      Hollandish chemists. See Ethylene, and Olefiant.

   Dutch oven, a tin screen for baking before an open fire or
      kitchen range; also, in the United States, a shallow iron
      kettle for baking, with a cover to hold burning coals.

   Dutch pink, chalk, or whiting dyed yellow, and used in
      distemper, and for paper staining. etc. --Weale.

   Dutch rush (Bot.), a species of horsetail rush or
      Equisetum (Equisetum hyemale) having a rough,
      siliceous surface, and used for scouring and polishing; --
      called also scouring rush, and shave grass. See
      Equisetum.

   Dutch tile, a glazed and painted ornamental tile, formerly
      much exported, and used in the jambs of chimneys and the
      like.
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   Note: Dutch was formerly used for German.
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               Germany is slandered to have sent none to this
               war [the Crusades] at this first voyage; and that
               other pilgrims, passing through that country,
               were mocked by the Dutch, and called fools for
               their pains.                       --Fuller.
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The Collaborative International Dictionary of English v.0.48:

Dutch \Dutch\, n.
   1. pl. The people of Holland; Dutchmen.
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   2. The language spoken in Holland.
      [1913 Webster]

WordNet (r) 3.0 (2006):

Dutch
    adj 1: of or relating to the Netherlands or its people or
           culture; "Dutch painting"; "Dutch painters"
    n 1: the people of the Netherlands; "the Dutch are famous for
         their tulips" [syn: Dutch, Dutch people]
    2: the West Germanic language of the Netherlands