barbotage

Noun

 * 1) 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).

Etymology
From.

Noun

 * 1) splashing
 * 2) a mixture of bran and water used to feed animals