Mad ‧ e ‧ moi ‧ selle /ˌmædəmwəˈzel/ BrE AmE noun ( plural Mesdemoiselles /ˌmeɪdəmwəˈzel/)
[ Date: 1400-1500 ; Language: French ; Origin: Old French ma damoisele 'my (young) lady' ]
used to address or refer to a young French-speaking woman who is not married ⇨ Madame , Monsieur :
Mademoiselle Dubois