Answer:
Cystolith
Step-by-step explanation:
Etymology is the study of the history of the words, the origin of them. In medical terminology roots, suffices and prefixes in Latin and ancient greek are commonly used to describe symptoms, deceases, etc.
Prefixes don't require further modification to be added to a word root because the prefix normally ends in a vowel or vowel sound, suffixes are attached to the end of a word root to add meaning such as condition, disease process, or procedure.
Considering this we look for the Latin of stones, "lithus", and then modify it as a termination "-lite", -lith, and finally, we unify both words into one:
Cystolith
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