Also found in: Medical, Wikipedia.
Related to xyster: xebec


A surgical instrument for scraping bones.

[Greek xūstēr, scraper, from xūein, to scrape.]


(Surgery) a surgical instrument for scraping bone; surgical rasp or file
[C17: via New Latin from Greek: tool for scraping, from xuein to scrape, make smooth]
References in periodicals archive ?
This was due to die catch of Zapteryx xyster and Raja velezi, resulting in a TL higher than the other rays in die study, and only occurred in that year.
Diet composition and diel feeding behavior of the banded guitarfish Zapteryx xyster along the Pacific coast of Costa Rica, Central America.
He had seen the slaughterhouse Inspector lean over his damp pit, sniff, and move on because it smelled like rage and discontent in there, and death hadn't yet flown down with its xyster.