The DICT Development Group

  Mimosa \Mi*mo"sa\ (?; 277), n. [NL., fr. Gr. ? imitator. Cf.
     Mime.] (Bot.)
     A genus of leguminous plants, containing many species, and
     including the sensitive plants ({Mimosa sensitiva, and
     Mimosa pudica).
     [1913 Webster]
  
     Note: The term mimosa is also applied in commerce to several
           kinds bark imported from Australia, and used in
           tanning; -- called also wattle bark. --Tomlinson.
           [1913 Webster]

  mimosa
      n 1: evergreen Australasian tree having white or silvery bark
           and young leaves and yellow flowers [syn: silver wattle,
           mimosa, Acacia dealbata]
      2: any of various tropical shrubs or trees of the genus Mimosa
         having usually yellow flowers and compound leaves
      3: a mixed drink containing champagne and orange juice [syn:
         mimosa, buck's fizz]