Examples of “parasite” in a Sentence

noun An organism that lives on or in another species and benefits at that host's expense.

• Tapeworms are parasites that live in the intestines of their hosts.
• The vet checked the dog for fleas and other parasites.
• Ticks are parasites that feed on the blood of animals and people.

noun A person who lives off others' effort or generosity without giving anything back.

• He accused his freeloading roommate of being a parasite.
• Nobody wanted to work with him because he was a parasite who took credit for everything.
• She felt like a parasite, eating her friends' food and never paying a penny.