PRONUNCIATION: (pe-nuh-TRAY-lee-uh)

MEANING: plural noun: The innermost, secret, or hidden parts of something.

ETYMOLOGY: From Latin penetralia, from penetrare (to penetrate), from penitus (interior) + intrare (to enter). Earliest documented use: 1668.

PEN-TRALIA - old slang from when Australia was the place they sent convicted criminals to

PINE TRALIA - we'll follow your scent with bloodhounds

FENETRA LIRA - throw your pre-E.C. Italian currency out the window