penetralia Meaning, Definition & Usage

  1. noun the innermost parts

WordNet

Pen`e*tra"li*a noun plural
Etymology
L., fr. penetralis penetrating, internal. See Penetrate.
Definitions
  1. The recesses, or innermost parts, of any thing or place, especially of a temple or palace.
  2. Hidden things or secrets; privacy; sanctuary; as, the sacred penetralia of the home.

Webster 1913