资料来源 : Webster's Revised Unabridged Dictionary (1913)

Shamrock \Sham"rock\, n. [L. seamrog, seamar, trefoil, white
   clover, white honeysuckle; akin to Gael. seamrag.] (Bot.)
   A trifoliate plant used as a national emblem by the Irish.
   The legend is that St. Patrick once plucked a leaf of it for
   use in illustrating the doctrine of the trinity.

   Note: The original plant was probably a kind of wood sorrel
         ({Oxalis Acetocella}); but now the name is given to the
         white clover ({Trifolium repens}), and the black medic
         ({Medicago lupulina}).

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.

   {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}.

资料来源 : WordNet®

Trifolium repens
     n : creeping European clover having white to pink flowers and
         bright green leaves; naturalized in United States; widely
         grown for forage [syn: {white clover}, {dutch clover}, {shamrock}]