Of, relating to, or designating gnawing mammals of (or formerly of) the order Rodentia. Also (of incisor teeth): adapted for gnawing.

Of or relating to rodents; resembling or characteristic of a rodent.

Of, relating to, or of the nature of a rodent or rodents; characteristic of a rodent.

Zoology. Of, relating to, or resembling (that of) squirrels. Cf. sciurid, adj., sciurine, adj.