murine /ˈmjʊəɹaɪn/adjective 2noun 1forms 3 adjective2 •Of, pertaining to, or characteristic of a mouse.They had watched, paralysed, as, squeaking with terror, her small murine body was ripped to pieces, Tilly yipping gleefully with excitement all the while. — 2023 •More generally, of, pertaining to, or characteristic of any rodent up to the taxonomic rank of Muroidea, most often with reference to mice and rats of the subfamily Murinae.Are our stem cells really, then, a billion or a trillion times more "cancerproof" than murine stem cells? — 1977 noun1 •Any murine rodent. formsmurines · more murine · most murine