pallium

noun7

1. •
   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.

   • Tut, tut, I have absolved thee: dost thou scorn me, / Because I had my Canterbury pallium / From one whom they dispoped? — 1877
2. •
   (historical) A large cloak worn by Greek philosophers and teachers.
3. •
   The cerebral cortex.
4. •
   The mantle of a mollusc.
5. •
   A presumed gelatinous envelope of diatoms.
6. •
   The membrane which stretches across the inner walls of the subgenital plate and covers the aedeagus of a grasshopper.
7. •
   (no longer used) A sheet of cloud covering the whole sky, especially nimbostratus.