فِرْنِبٌ

A rat, or mouse; synonym فَأْرَةٌ: (IAar, O, K:) or the young one generated between it and a jerboa: (K:) or [as a coll. gen. n.] the rat, or mouse; synonym فَأْرٌ. (T.) [See also قَرْنَبٌ.]