How to Use flatworm in a Sentence

flatworm

noun
  • The flatworm doesn’t feed on or live within your pet.
    — Hanna Wickes, Charlotte Observer, 9 Apr. 2026
  • The flatworm climbs aboard, rides along and drops off somewhere new — no harm done to the host.
    — Hanna Wickes, Miami Herald, 9 Apr. 2026
  • Researchers say the blue-green flatworm may have come from Mozambique.
    — The Washington Post, Arkansas Online, 7 Feb. 2022
  • Ruptures, tears, and cracks are known to shape zebra fish nostrils, hydra mouths, fruit fly legs, and whole flatworms.
    — Clare Watson, Quanta Magazine, 27 Feb. 2026
  • Some species of flatworm engage in this duel to see who can inseminate the other.
    — Corryn Wetzel, Smithsonian Magazine, 17 Nov. 2020
  • But regeneration of the telencephalon calls on stem cells to save the day, just like the flatworm.
    — Sofia Quaglia, Discover Magazine, 6 Feb. 2023
  • Just as hammerhead sharks cruise through lagoons, hammerhead flatworms hunt through soil.
    — Ben Guarino, BostonGlobe.com, 22 May 2018
  • The researchers hope that the flatworm experiment marks only the first of many such research projects.
    — Nathaniel Scharping, Discover Magazine, 13 June 2017
  • These flatworms aren’t parasites.
    — Hanna Wickes, Miami Herald, 9 Apr. 2026
  • The research does not suggest that owners need to keep pets indoors or alter their routines because of these flatworms.
    — Hanna Wickes, Kansas City Star, 9 Apr. 2026
  • In nature, the organisms that exhibit it are thought to be in other groups only, like flatworms.
    — Caroline Delbert, Popular Mechanics, 30 Dec. 2019
  • That’s where your pet comes in, ferrying worms across yards, sidewalks and fences to locations the flatworm could never reach on its own.
    — Hanna Wickes, Charlotte Observer, 9 Apr. 2026
  • Most of these parasites were trematodes, or parasitic flatworms also called flukes.
    — Laura Baisas Aug 14, Popular Science, 14 Aug. 2025
  • Japanese knotweed and New Zealand flatworms are cited as threats.
    — Bloomberg.com, 27 Mar. 2018
  • Researchers have confirmed that invasive flatworms can hitch rides on your pet’s fur, clinging to their coat after time in the yard or garden.
    — Hanna Wickes, Kansas City Star, 9 Apr. 2026
  • Euhaplorchis californiensis, for one, is a trematode flatworm that, in its larval stage, looks a bit like a sperm, with a big head and long tail.
    — Rachel Nuwer, Scientific American, 28 Apr. 2022
  • The research has echoes of studies from the 1960s involving flatworms.
    — Veronique Greenwood, New York Times, 15 May 2018
  • Justine and his colleagues do not yet know how the influx of hammerhead flatworms is impacting France’s soils.
    — Brigit Katz, Smithsonian, 26 May 2018
  • And the flatworm with its new noggin immediately solving the maze its old one worked so diligently to master?
    — Christian Wiman, Harpers Magazine, 23 Nov. 2025
  • And the flatworm with its new noggin immediately solving the maze its old one worked so diligently to master?
    — Christian Wiman, Harpers Magazine, 30 Dec. 2025
  • Periods of heavy rain in Houston drew out a rash of invasive and toxic hammerhead flatworms.
    — Kelli Bender, Peoplemag, 29 July 2024
  • At a school biology club meeting, Polyak cut up flatworms called planaria and watched their heads and tails regenerate.
    — Adithi Ramakrishnan, Dallas News, 17 May 2023
  • Hammerhead flatworms—so named for their weird, broad heads—are predatory critters that feast on earthworms and, sometimes, on one another.
    — Brigit Katz, Smithsonian, 26 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, 10 June 2018
  • The creatures are also are known to host blood flukes—or parasitic flatworms—that can infect endangered loggerhead sea turtles.
    — Brigit Katz, Smithsonian, 6 Apr. 2017
  • For instance, he’s shown that flatworms that have had their bioelectricity tampered with can be coaxed to regenerate themselves with two heads.
    — Jason Bittel, Smithsonian, 12 June 2017
  • The flatworms first infect the snail, then a fish, and finally a warm-blooded vertebrate, like a bird or a human, that consumes the infected fish.
    — City News Service, San Diego Union-Tribune, 3 June 2025
  • And sure, animals such as starfish and flatworms can reproduce by cloning themselves—but at the end of the day, in most species, the survival of animals rests on their mothers.
    — Jackie Flynn Mogensen, Scientific American, 10 May 2026
  • The human eye, Darwin argued, could have evolved from a simple light-catching patch of tissue of the kind that animals such as flatworms grow today.
    — Quanta Magazine, 16 July 2013
  • The process starts all over again, as the birds' intestinal tract provides a space for the flatworm to reproduce and enter another unsuspecting host.
    — Fox News, 16 Aug. 2019

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'flatworm.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Last Updated: