tardigrade

noun

tar·​di·​grade ˈtär-də-ˌgrād How to pronounce tardigrade (audio)
: any of a phylum (Tardigrada) of microscopic invertebrates with four pairs of stout legs that live usually in water or damp moss

called also water bear

Examples of tardigrade in a Sentence

Recent Examples on the Web Inside is a tardigrade, so well-preserved that its tiny claws are still visible. Nathaniel Scharping, Discover Magazine, 4 Apr. 2024 Anything So what happened to the tardigrades that were travelling on the probe? Laurent Palka, Discover Magazine, 1 Mar. 2024 However, whatever the dose, radiation kills tardigrade eggs. Laurent Palka, Discover Magazine, 1 Mar. 2024 Miller, who has studied and written about tardigrades, was not involved with this research. Jenna Schnuer, CNN, 5 Feb. 2024 Still, the researchers say there’s much more work to be done to understand how free radicals are working in tardigrades. Meghan Bartels, Scientific American, 17 Jan. 2024 To withstand extreme cold, for example, tardigrades don’t enter tun. Christian Thorsberg, Smithsonian Magazine, 18 Jan. 2024 Under these forms of stress, tardigrades curl up into a temporary protective state of dormancy called a tun. Meghan Bartels, Scientific American, 17 Jan. 2024 In this state, tardigrades’ metabolic activity slows to a mere crawl, while specialized proteins swathe and protect their cells. Katie Liu, Discover Magazine, 14 Dec. 2023

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

Word History

Etymology

ultimately from Latin tardigradus slow-moving, from tardus slow + gradi to step, go — more at grade entry 1

First Known Use

1860, in the meaning defined above

Time Traveler
The first known use of tardigrade was in 1860

Dictionary Entries Near tardigrade

Cite this Entry

“Tardigrade.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tardigrade. Accessed 19 Apr. 2024.

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