Source : Webster's Revised Unabridged Dictionary (1913)

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.

   2. (Zo["o]l.) A marine food fish ({Sci[ae]na chrysura}), of
      the Southern United States; -- called also {yellowtail},
      and {silver perch}.