The outermost vestment worn by the priest at Mass, enveloping the body like a small house.
The chasuble is the principal vestment of the celebrant at the Eucharist. It is worn over the other garments as it represents charity, which covers all things (Colossians 3:14). Its Latin name, casula — "little house" — recalls the ample conical garment of the early Church, which fell on every side and had to be gathered up at the arms.
Style
The Chasuble has many styles but two main ones: Gothic (most common), distinguished by its length and looseness, coming down to the priest's forearms; and Roman, defined by the material being cut off at the shoulders (the fiddleback, of Spanish origin, is a notable sub-type which is even more cut back at the top). What most defines a chasuble is that it is sleeveless.