tardigrade

noun
tar·​di·​grade | \ ˈtär-də-ˌgrād How to pronounce tardigrade (audio) \

Definition of tardigrade

: 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

First Known Use of tardigrade

1860, in the meaning defined above

History and Etymology for tardigrade

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

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The first known use of tardigrade was in 1860

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Britannica.com: Encyclopedia article about tardigrade

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