noun, noun which may take the genitive case particle 'no'
parasite; parasitic organism
A biological term for an organism that lives on or in another organism and benefits at the host's expense. Can also be used metaphorically for a person who exploits others.
寄生生物は宿主から栄養を奪う。
Parasites take nutrients from their host.
彼は親に
He is like a parasite living off his parents.