Webster's Revised Unabridged Dictionary · 1913

Choledology

Choledology , noun

[Greek cholh` bile + -logy. Compare French cholédologie.]

(Medicine) A treatise on the bile and bilary organs. — Dunglison

Littré says that the word cholédologie is absolutely barbarous, there being no Greek word {not transcribed}. A proper form would be cholology.