'Soutane' definitions:

Definition of 'soutane'

noun

A long cassock with buttons down the front; worn by Roman Catholic priests

From: GCIDE

Soutane \Sou`tane"\, n. [F., fr. Sp. sotana, or It. sottana, LL. subtana, fr. L. subtus below, beneath, fr. sub under.] (Eccl. Costume) A close garnment with straight sleeves, and skirts reaching to the ankles, and buttoned in front from top to bottom; especially, the black garment of this shape worn by the clergy in France and Italy as their daily dress; a cassock. [1913 Webster]