declawing; onychectomy
Veterinary term for surgical removal of claws, typically in cats. The kanji literally mean 'extract claw technique'.
Onychectomy is a surgery to permanently remove a cat's claws.
Compound of 抜 (extract), 爪 (claw), and 術 (technique/surgery). The reading ばっそう is a phonetic change from ばつそう.