knacker

English Thesaurus

1. someone who buys up old horses for slaughter (noun.person)

hypernym	:	butcher, slaughterer,
definition	:	a person who slaughters or dresses meat for market (noun.person)

2. someone who buys old buildings or ships and breaks them up to recover the materials in them (noun.person)

hypernym	:	wrecker,
definition	:	someone who demolishes or dismantles buildings as a job (noun.person)