noun. An organism that lives and feeds on or in an organism of a different species and causes harm to its host.

noun. undefined

noun. One who habitually takes advantage of the generosity of others without making any useful return.

noun. One who lives off and flatters the rich; a sycophant.

noun. A professional dinner guest, especially in ancient Greece.

noun. Originally, one who frequents the tables of the rich and earns his welcome by flattery; hence a hanger-on; a fawning fiatterer; a sycophant.

noun. Specifically In zoö., an animal that lives in or on and at the expense of another animal called technically the host; also, by extension, an animal which lives on or with, but not at the expense of, its host: in the latter sense, more precisely designated inquilince or commensal (see these words). , Particularly, an insect which lives either upon or within another insect during its earlier stages, eating and usually destroying its host. In botany, a plant which grows upon another plant or upon an animal, and feeds upon its juices. See parasitic, and cut under Cercospora.

noun. In teratology See autosite.

noun. One who frequents the tables of the rich, or who lives at another's expense, and earns his welcome by flattery; a hanger-on; a toady; a sycophant.

noun. undefined

noun. A plant obtaining nourishment immediately from other plants to which it attaches itself, and whose juices it absorbs; -- sometimes, but erroneously, called epiphyte.

noun. A plant living on or within an animal, and supported at its expense, as many species of fungi of the genus Torrubia.

noun. undefined

noun. An animal which lives during the whole or part of its existence on or in the body of some other animal, feeding upon its food, blood, or tissues, as lice, tapeworms, etc.

noun. An animal which steals the food of another, as the parasitic jager.

noun. An animal which habitually uses the nest of another, as the cowbird and the European cuckoo.

noun. A (generally undesirable) living organism that exists by stealing the resources produced/collected by another living organism.

noun. A person who relies on other people's efforts and gives little back (originally a sycophant).

noun. an animal or plant that lives in or on a host (another animal or plant); it obtains nourishment from the host without benefiting or killing the host

noun. a follower who hangs around a host (without benefit to the host) in hope of gain or advantage

"Sir Martin Sorrell, WPP chief executive, has labelled Google a "frenemy", due to both the threat and the opportunity it represents, while former ITV chief executive Michael Grade decided not to sit on the fence, preferring the term "parasite"."

commensal  

accidental parasite  autoxenous parasite  autœcious parasite  beaver parasite  estivo-autumnal parasite  

parasite drag  parasitical  parasiticide  parasitism  parasitology  

follower  

algae  bacteria  beggar  bug  flea  

adherent  algae  appendage  attendance  attendant