eu‧tha‧nize /ˈjuːθənaɪz/ (
also eu‧tha‧nase /-neɪz/
British English)
verb [transitive] to kill an animal in a painless way, usually because it is very sick or old
Synonym : put down:
The decision to euthanase a pet is heartbreaking. [TahlilGaran] Dictionary of Contemporary English ▲