parclose

noun2

1. •
   A partition that closes off part of a building; especially one that separates an altar or chapel from the rest of a church.

   • The two eastern bays of this aisle form the Golafre chapel and are inclosed by modern parcloses of oak[…] — 1906
2. •
   (no longer used) An enclosed area, especially one separated from the main body of a building by a screen or partition.