1. [ noun ] (biology) an animal or plant that lives in or on a host (another animal or plant); the parasite obtains nourishment from the host without benefiting or killing the host
Related terms: host life_form ectoparasite parasitic_plant endoparasite plant
2. [ noun ] a follower who hangs around a host (without benefit to the host) in hope of gain or advantage
Synonyms: minion sponge sponger leech
Related terms: follower mooch
Similar spelling:   parasitemia