debridement
Concise Oxford English Dictionary © 2008 Oxford University Press:
debridement /deɪˈbriːdmɒ̃, dɪˈbriːdm(ə)nt/
▶noun Medicine the removal of damaged tissue or foreign objects from a wound.
– origin C19: from Fr., from débrider, lit. ‘unbridle’, based on bride ‘bridle’ (of Gmc origin).
'debridement' also found in these Oxford entries:

