A long wide band of cloth with an opening for the head worn front and back over the shoulders as part of a monastic habit. (Merriam – Webster)
Part of the monastic habit worn by members of many Christian, esp Roman Catholic, religious orders, consisting of a piece of woollen cloth worn over the shoulders, and hanging down in front and behind to the ankles. (Collins Dictionary)
A long piece of clothing that hangs from the shoulders, worn over other clothes by Christian monks (=religious men who live as a group) (Cambridge Dictionary)
Relating to the shoulder or shoulder blade. (Oxford Dictionaries)
A short monastic cloak covering the shoulders. (Oxford Dictionaries)
Why scapular stability is important.