loculus

noun4

1. •
   A little place or space; a cell; a chamberlet.
2. •
   In ancient catacombs and tombs of some types, a small separate chamber or recess cut into the rock, for the reception of a body or urn.
3. •
   One of the spaces between the septa in the Anthozoa.
4. •
   One of the compartments of a several-celled ovary.