Definition of parasite
1 : a person who exploits the hospitality of the rich and earns welcome by flattery sought to rid the palace of the parasites of his prosperity
2 : an organism living in, with, or on another organism in parasitism an intestinal parasite of humans a parasite that causes malaria
3 : something that resembles a biological parasite in dependence on something else for existence or support without making a useful or adequate return That city has become a parasite on the country.
Examples of parasite in a Sentence
Many diseases are caused by parasites.
She's a parasite who only stays with him for the money.
These new companies are parasites feeding off the success of those who spent the last decade establishing the industry.
Recent Examples of parasite from the Web
Phillip Baker, executive director of the American Lyme Disease Foundation, said the neighborhood approach sounded like a good one but noted that ticks are a resilient parasite.
Use the device to grasp the parasite as close to the skin as possible, then pull up with steady, even pressure.
Due to their phosphate-rich chemistry, poop can actually preserve many delicate specimens, such as muscle, soft tissue, hair and parasites.
Since May 20, about 80 ducklings have been found dead in the Reflecting Pool, and necropsies showed the likely cause of death to be parasites that grow in snails that live in the water, the National Park Service said in a statement.
His inaugural address denounced American allies as cunning parasites living off American wealth and generosity.
At that point, the only way to defeat the lice is to find a completely novel approach, one that the parasites are not preadapted to fending off.
But sustained use of these same few chemicals has allowed the blood-sucking parasites to evolve widespread resistance to them.
A cunning parasite worms its way into people's brains, inducing hallucinations and sending them into New York City's streets in search of new victims.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'parasite'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of parasite
Middle French, from Latin parasitus, from Greek parasitos, from para- + sitos grain, food
First Known Use: 1539See Words from the same year
Synonym Discussion of parasite
PARASITE Defined for English Language Learners
Definition of parasite for English Language Learners
: an animal or plant that lives in or on another animal or plant and gets food or protection from it
: a person or thing that takes something from someone or something else and does not do anything to earn it or deserve it
PARASITE Defined for Kids
Definition of parasite for Students
1 : a living thing (as a flea, worm, or fungus) that lives in or on another living thing and gets food and sometimes shelter from it and usually causes harm to it
2 : a person who lives at the expense of another
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