Definition of "pallium"
pallium
/ˈpalɪəm/
noun
plural pallia or palliums
(Christianity) A woolen liturgical vestment resembling a collar and worn over the chasuble in the Western Christian liturgical tradition, conferred on archbishops by the Pope, equivalent to the Eastern Christian omophorion.
(obsolete, meteorology) A sheet of cloud covering the whole sky, especially nimbostratus.