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
From the M-W Editors
Origin and Etymology of tardigrade
ultimately from Latin tardigradus slow-moving, from tardus slow + gradi to step, go — more at grade
Learn More about tardigrade
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Britannica.com: Encyclopedia article about tardigrade
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