parasite
🇺🇸
/ˈpærəsaɪt/
🇬🇧
/ˈpærəsaɪt/
A small living thing that lives on or in another living thing and takes food from it.
The tick is a parasite that feeds on animal blood.
A person who depends on others for support without giving anything in return.
He became a parasite who lived off his family's money without working.