different between lithotriptist vs lithotripsy

English

lithotriptist (plural lithotriptists)

From litho- (“relating to a stone or calculus”) +? Ancient Greek ?????? (trîpsis, “rubbing, friction”) +? -y.

lithotripsy (plural lithotripsies)

(surgery) A treatment, typically using ultrasound shock waves or crushing with a surgical instrument, by which a kidney stone or similar calculus is broken into particles small enough to be voided or washed out.

“lithotripsy”, in Lexico, Dictionary.com; Oxford University Press, 2019–present.
“lithotripsy”, in Merriam–Webster Online Dictionary, (Please provide a date or year).

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