Illustration of flea
: any of an order (Siphonaptera) of small wingless bloodsucking insects that have a hard laterally compressed body and legs adapted to leaping and that feed on warm-blooded animals
Examples of flea in a Sentence
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Cedar: Another common essential oil thanks to its ability to help repel fleas and ticks.
—
Bestreviews, Mercury News, 17 June 2025
When she was found, Bella, estimated to be around age 18 to 20, was allegedly suffering from severe flea dermatitis on her back, as well as hair loss.
—Bailey Richards, People.com, 2 June 2025
Her skull was exposed, and her tiny body was crawling with fleas.
—Lucy Notarantonio, MSNBC Newsweek, 10 June 2025
Seresto large dog flea and tick collar: on sale for $47.98 (20% off)
Original price: $59.98
Fleas and ticks are abundant in the summer.
—Christopher Murray
May Earn A Commission If You Buy Through Our Referral Links. This Content Was Created By A Team That Works Independently From The Fox Newsroom., FOXNews.com, 13 May 2025
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Bestreviews, Mercury News, 17 June 2025
When she was found, Bella, estimated to be around age 18 to 20, was allegedly suffering from severe flea dermatitis on her back, as well as hair loss.
—Bailey Richards, People.com, 2 June 2025
Her skull was exposed, and her tiny body was crawling with fleas.
—Lucy Notarantonio, MSNBC Newsweek, 10 June 2025
Seresto large dog flea and tick collar: on sale for $47.98 (20% off)
Original price: $59.98
Fleas and ticks are abundant in the summer.
—Christopher Murray
May Earn A Commission If You Buy Through Our Referral Links. This Content Was Created By A Team That Works Independently From The Fox Newsroom., FOXNews.com, 13 May 2025
See All Example Sentences for flea
Cite this Entry
“Flea.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/flea. Accessed 1 Jul. 2025.
Copy CitationKids Definition
flea
noun
: any of an order of small wingless bloodsucking insects with a hard body and legs used for leaping
Medical Definition
flea
noun
: any of the order Siphonaptera comprising wingless bloodsucking insects that have a hard laterally compressed body and legs adapted to leaping and that feed on warm-blooded animals see cat flea, chigoe sense 1, dog flea, rat flea, sand flea, sticktight flea
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