curandero
Concise Oxford English Dictionary © 2008 Oxford University Press:
curandero /ˌkjʊərənˈdɛːrəʊ/
▶noun (fem. curandera) (pl. curanderos or curanderas) (in Spain and Latin America) a healer who uses folk remedies.
– origin Sp., from curar ‘to cure’, from L. curare.
'curandero' also found in these Oxford entries:

