noun, noun or participle which takes 'suru', intransitive verb
parasitism; parasitic
Refers to an organism living on or in another organism and benefiting at its expense. Also used figuratively for people or entities that depend on and exploit others.
この植物は他の木に寄生している。
This plant is parasitic on other trees.
彼は親に寄生して生活し
He lives as a parasite on his parents.