The Collaborative International Dictionary
Coeliac \C[oe]"li*ac\, Celiac \Ce"li*ac\, a. [L. coeliacus, Gr. ?, fr. ? belly, fr. koi^los hollow.] Relating to the abdomen, or to the cavity of the abdomen.
C[oe]liac artery (Anat.), the artery which issues from the aorta just below the diaphragm; -- called also c[oe]liac axis.
C[oe]liac flux, C[oe]liac passion (Med.), a chronic flux or diarrhea of undigested food.
Wikipedia
In pre-modern medicine, coeliac passion, celiac passion, or coeliaca passio was a kind of flux of the belly, wherein the food does not pass perfectly crude, but half digested. This is more or less the same as lientery.
In the coeliac, the food is sometimes digested, without the chyle's being separated from the excrements. The causes of coeliac were believed to be either the weakness of the ferment of the stomach, the short period of time the food stayed there, the obstruction of the lacteals, or the want of acrity in the bile.
Category:History of medicine