noun,pluralBou·viers des Flan·dres[boo-vyeyzduh-flan-derz; French boo-vyey dey flahn-druh]. /buˈvyeɪz də ˈflæn dərz; French bu vyeɪ deɪ ˈflɑ̃ drə/.
one of a Belgian breed of dogs having eyebrows, a mustache and a beard, and a rough, wiry, tousled coat ranging in color from fawn to pepper-and-salt, gray, brindle, or black.