We don't have synonyms for barbotage yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are sabotage, harborage and baronage.
(n) :
Repeated injection and aspiration of fluid, used in such instances as the injection of spinal anesthetic, to break up and remove calcification (e.g., in a joint), and for obtaining fluid cytology (e.g., from the bladder or urethra).
(n) :
Repeated injection and aspiration of fluid, used in such instances as the injection of spinal anesthetic, to break up and remove calcification (e.g., in a joint), and for obtaining fluid cytology (e.g., from the bladder or urethra).