Pronounced: deh-nih-GAY-shun, noun
Notes: A simpler definition that I thought
The word paries is “a wall of a body part or cavity”
Our word came into English in the late 1600s
Background / Comments
I cannot recall ever running across this word; however, it is related to the word “parietal”, which I have heard in some mystery stories (I think “parietal lobe”). Anyway, our word comes from the Latin word paries (wall).