pallium

noun

1. 1

   A large cloak worn by Greek philosophers and teachers.

2. 2

   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.

3. 3

   The mantle of a mollusc.

4. 4

   The cerebral cortex.

5. 5

   A sheet of cloud covering the whole sky, especially nimbostratus.