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parasites

NOUN

something that exists by taking from or depending on another

Synonyms

STRONG

barnacle bloodsucker bootlicker deadbeat dependent flunky freeloader groupie hanger-on idler leech scrounger sponge stooge sucker sycophant taker

Antonyms

WEAK

blessing

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

According to the WHO, there have been reports this year of some 111,500 cases of disease or infestation due to external parasites.

From BBC • May 2, 2026

While viral infections are the most common cause in the United States, bacteria, parasites and fungi can also cause the condition.

From Los Angeles Times • Apr. 28, 2026

The closest comparison comes from marine ecosystems, where fish visit "cleaning stations" to have parasites removed by smaller species.

From Science Daily • Apr. 14, 2026

While they already groom each other to remove debris, spores, and parasites, the smaller cone ants might be able to reach areas that are otherwise difficult to clean.

From Science Daily • Apr. 14, 2026

In their home ecosystems these species have, like all living things, a full complement of parasites, microbes, viruses, and insect predators to shorten and immiserate their lives.

From "1491" by Charles C. Mann