Entry 2 senses · 2 variants Webster, 1913 Murine /myo͝or'-ēnˌ/ · Mu·rine · IPA /ˈmjʊəɹaɪn/ a. n. 01 a. Pertaining to a family of rodents (Muridae), of which the mouse is the type. 1. Pertaining to a family of rodents (Muridae), of which the mouse is the type.(Zool.) 02 n. One of a tribe of rodents, of which the mouse is the type. 1. One of a tribe of rodents, of which the mouse is the type.(Zool.)