The Collaborative International Dictionary of English v.0.48:

Mademoiselle \Ma`de*moi`selle"\, n.; pl. Mesdemoiselles. [F.,
   fr. ma my, f. of mon + demoiselle young lady. See Damsel.]
   1. A French title of courtesy given to a girl or an unmarried
      lady, equivalent to the English Miss. --Goldsmith.
      [1913 Webster]

   2. (Zool.) A marine food fish (Sciaena chrysura), of the
      Southern United States; -- called also yellowtail, and
      silver perch.
      [1913 Webster]

WordNet (r) 3.0 (2006):

mademoiselle
    n 1: small silvery drumfish often mistaken for white perch;
         found along coasts of United States from New York to Mexico
         [syn: silver perch, mademoiselle, Bairdiella
         chrysoura]

Moby Thesaurus II by Grady Ward, 1.0:

66 Moby Thesaurus words for "mademoiselle":
   Frau, Fraulein, Miss, Mistress, Mlle, Mme, Mmes, babe, baby, broad,
   chick, colleen, cutie, dame, damoiselle, damsel, demoiselle, doll,
   dona, donna, filly, frail, gal, girl, girlie, heifer, hoyden,
   jeune fille, jill, junior miss, lady, lass, lassie, little missy,
   madam, madame, maid, maiden, mem-sahib, mesdames, miss, missy,
   nymphet, piece, romp, schoolgirl, schoolmaid, schoolmiss, senhora,
   senhorita, signora, signorina, skirt, slip, subdeb, subdebutante,
   subteen, subteener, teenybopper, tomato, tomboy, virgin, vrouw,
   wench, young creature, young thing