flatworm

noun
flat·​worm | \ ˈflat-ˌwərm How to pronounce flatworm (audio) \

Definition of flatworm

: any of a phylum (Platyhelminthes) of soft-bodied usually much flattened acoelomate worms (such as the planarians, flukes, and tapeworms)

called also platyhelminth

Examples of flatworm in a Sentence

Recent Examples on the Web

Tobias Boothe, a biologist at the Max Planck Institute of Molecular Cell Biology and Genetics in Dresden, Germany, uses it to visually distinguish the thousands of species of flatworms, a difficult task even for experts. Matthew Hutson, Science | AAAS, "No coding required: Companies make it easier than ever for scientists to use artificial intelligence," 31 July 2019 An investigation online pointed her to the New Guinea flatworm, which was later confirmed by the Texas Invasive Species Institute (TISI). Fox News, "Texas woman discovers horde of black worms known to carry dangerous parasite in backyard," 4 July 2019 The flatworm was discovered in the continental United States in 2015, in Florida, and has since been confirmed in Texas and Puerto Rico, according to TISI. Fox News, "Texas woman discovers horde of black worms known to carry dangerous parasite in backyard," 4 July 2019 For almost twenty years, a specter has been haunting France: flatworms. David Grossman, Popular Mechanics, "Scientists Discover Giant Worms Invaded France Almost 20 Years Ago," 23 May 2018 But True or Poo? covers a larger range of subjects, from the fact that flatworms fight each other with their genitalia (true) to the myth that camels store water in their humps (poo). Rachel Becker, The Verge, "Flatworms fence with their penises and other gross science facts," 21 Oct. 2018 Hammerhead flatworms—so named for their weird, broad heads—are predatory critters that feast on earthworms and, sometimes, on one another. Brigit Katz, Smithsonian, "Hammerhead Flatworms Have Been Quietly Invading France for Two Decades," 26 May 2018 After years ofd scattered claims, scientists have confirmed that the nation is indeed infested with hammerhead flatworms and has been for nearly two decades. David Grossman, Popular Mechanics, "Scientists Discover Giant Worms Invaded France Almost 20 Years Ago," 23 May 2018 The parasite, the lancet liver fluke, is a flatworm that jumps between different animal species to complete its life cycle. Laura Yan, Popular Mechanics, "These Brain Worms Turn Ants Into Death-Seeking Zombies," 10 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'flatworm.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of flatworm

1874, in the meaning defined above

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Last Updated

7 Aug 2019

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The first known use of flatworm was in 1874

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More Definitions for flatworm

flatworm

noun
flat·​worm | \ ˈflat-ˌwərm How to pronounce flatworm (audio) \

Medical Definition of flatworm

: any worm of the phylum Platyhelminthes : platyhelminth especially : turbellarian

More from Merriam-Webster on flatworm

Rhyming Dictionary: Words that rhyme with flatworm

Britannica.com: Encyclopedia article about flatworm

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