\Tar"di*grade\, a. [L. tardigradus; tardus slow +
gradi to step: cf. F. tardigrade.]
1. Moving or stepping slowly; slow-paced. [R.] --G. Eliot.
2. (Zo["o]l.) Of or pertaining to the Tardigrada.

\Tar"di*grade\, n. (Zo["o]l.)
One of the Tardigrada.