D defs.my
Entry 2 senses Webster, 1913

Penetralia

· Pen·e·tra·li·a · IPA /ˌpɛ.nəˈtɹeɪ.li.ə/
01 n. pl. The recesses, or innermost parts, of any thing or place, especially of a temple or palace.
  1. 1.
    The recesses, or innermost parts, of any thing or place, especially of a temple or palace.
  2. 2.
    Hidden things or secrets; privacy; sanctuary; as, the sacred penetralia of the home.