Proper Latin Terminology for the Cavum Septi Pellucidi Thomas Winter and Margaret M. Toscano
Cavum Septi Pellucidi
Latin Translation:
Cavum = Cavity
Pellucid = Clear
Septa = Walls
The suffix “i” refers to the possessive form similar in to English “……..’s” as in “dog’s bone”
So, cavum septi pellucidi literally means “the clear wall’s space.”
Septum Pellucidum
The cavum is closed in childhood in most people, and the septa are fused.
The suffix “um” is Latin singular, since it is now one single membrane
The fused membrane is properly termed the “septum pellucidum” (clear wall)
From: http://www.ajronline.org/doi/full/10.2214/AJR.11.7152