The Collaborative International Dictionary of English v.0.48:

Lentous \Len"tous\ (-t[u^]s), a. [L. lentus. See Lentor.]
   Viscid; viscous; tenacious.
   [1913 Webster]

         Spawn of a lentous and transparent body. --Sir T.
                                                  Browne.
   [1913 Webster] L'envoi