How. many word roots are present in the word that means condition of stones in the common bile duct?

It has three word roots.

Explanation:

The word you're looking for is "choledocholithiasis" which has three word roots.

Choledocholithiasis is the term used to indicate the existence of predras in the choledochal duct. It is a serious condition that causes damage to liver cells causing a lot of pain and causing the need for surgical intervention.

The root of the words refers to the element that originated the word and that is directly linked to its meaning and historical context.

cats appear to have glowing cat eyes because the back of their eyeballs includes a special reflective surface called the tapetum lucidum. this lets them see better during the night, giving them a much better vision.