[chaz-yuh-buh
l, -uh-buhl, chas-] 
| a sleeveless outer vestment worn by the celebrant at Mass. |
| chas·u·ble (chāz'ə-bəl, chāzh'ə-, chās'ə-) n. A long sleeveless vestment worn over the alb by a priest during services. [French, from Old French, from Late Latin casubla, hooded garment, from *casupula, diminutive of casa, house.] |
chasuble
liturgical vestment, the outermost garment worn by Roman Catholic priests and bishops at mass and by some Anglicans and Lutherans when they celebrate the Eucharist. The chasuble developed from an outer garment worn by Greeks and Romans called the paenula or casula ("little house"), a conical or bell-shaped cloak made from a semicircular piece of cloth sewn partially up the front with an opening left for the head
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