The Collaborative International Dictionary of English v.0.48:

Reptant \Rep"tant\ (r?p"tant), a. [L. reptans, -antis, p. pr. of
   reptare, v. intens. from repere to creep. See Reptile.]
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   1. (Bot.) Same as Repent.
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   2. (Zool.) Creeping; crawling; -- said of reptiles, worms,
      etc.
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