parasite

/'pærəsait/

parasite is a noun with one core idea: something or someone benefits by taking from another source. In biology, it means an organism that lives in or on a host and gets food at the host’s expense, like a tick on a dog. But parasite can also describe a person who lives off others or attaches to a more powerful person or group for personal gain. That figurative use is strongly critical, so tone and context matter. Why is “a parasite on societyharsher than simply sayingfreeloader,” and how does it contrast with “hostorbenefactor”? Watch the full lesson to learn the word naturally.

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parasite
A tapeworm is a common parasite found in the intestines of some mammals.