spiny rat

Noun

• Any of certain caviomorph rodents of the family Echimyidae, especially of genus Proechimys, that resemble rats and have stiff, pointed hairs, or spines.
• Any murine rodent of the genus Maxomys (genus) (sometimes considered a subgenus of Rattus).
• Any murine rodent of the genus Tokudaia (genus).
• Any murine rodent of the genus Echiothrix (genus).