a. Ornith. [ad. mod.L. Sylviīnæ pl., f. Sylvia: see SYLVIAD and -ISE1.] Belonging to the Sylviinæ, either as a synonym of Sylviidæ reckoned as a subfamily of a larger family, or as a subfamily of Sylviidæ comprising the warblers of the Old World.
1884. Coues, Key N. Amer. Birds (ed. 2), 260. Polioptila has been sometimes associated with the Paridæ, but differs decidedly and is apparently Sylviine.
