Now updated for CSW19. New words, if any, and new inflections of existing words, are shown in red.
| acouchi acouchy | a relative of the AGOUTI. [Tupi acuchy]. Pl. ACOUCHIS, ACOUCHIES. |
| agouti agouty aguti | a small S. American rodent related to the guinea-pig. |
| arvicole | a mouse of the genus Arvicola; the field mouse. [L. arvum, a field + colere, to inhabit]. |
| arvicoline | of or like a field mouse. |
| bandicoot | a species of very large rat, found in India and Ceylon; (verb) to remove potatoes from the ground leaving the tops undisturbed. [Telugu pandikokku, pig-rat]. |
| beaver | an amphibious rodent; (verb) to toil industriously. |
| biscacha bizcacha viscacha vizcacha | a gregarious burrowing S. American rodent related to the chinchilla. |
| bobac bobak | a species of marmot. |
| capybara | a large S. American rodent. |
| cavy | a kind of South American rodent. |
| chickaree | the American red squirrel, so called from its cry. |
| chinchilla | a S. American rodent of the genus Chinchilla, with very soft grey fur. |
| chipmuck chipmunk | a mainly terrestrial squirrel of N America and parts of Asia, with dark stripes on the back and cheek pouches for storing and carrying food. |
| coypou coypu | a large S. American rodent, the source of nutria fur. |
| cricetid | a member of the Cricetidae, a family of rodents including gerbils. |
| degu | A small rodent native to Chile, aka Brush-Tailed Rat. |
| dormouse | any member of the Myoxidae, a family of rodents related to mice but somewhat squirrel-like in form and habit > DORMICE. |
| fieldmouse fieldvole | a name for various species of mouse and vole that live in the fields > FIELDMICE, FIELDVOLES. |
| flickertail | a N. American ground squirrel. |
| geomyoid | belonging to the pouched rats, an American family of burrowing rodents. |
| gerbil gerbille jerbil | a desert rodent. |
| gopher | a name in America applied to various burrowing animals, including the pouched rat and the ground squirrel; (verb) to burrow, mine. |
| groundhog | a common large North American marmot, aka WOODCHUCK. |
| hackee | the chipmunk; also, the CHICKAREE or red squirrel. |
| hampster hamster | a small Eurasian rodent. |
| hutia | a W. Indian rodent, aka hog-rat. |
| jerboa | a desert rodent that jumps on long legs like a kangaroo. [Arabic yarbu]. |
| jird | a N African gerbil. |
| kiore | (Maori) a small brown rat native to New Zealand. |
| lemming | a small short-tailed Arctic rodent. |
| loir | a large European dormouse. |
| mara | a large rodent, like a CAVY, found in Patagonia. |
| marmot | a kind of rodent. |
| molerat | a name for several burrowing rodents. |
| mouse | also a verb: to catch mice: hence MOUSES is valid. |
| mouselike | like a mouse. |
| mousie mousekin | a little mouse. |
| murid murine | belonging to the rats and mice family of rodents. |
| muriform | resembling a mouse or rat. |
| muskrat musquash mushrat | a large semi-aquatic N. American rodent, resembling a beaver. |
| nutria | the COYPU, or its fur. |
| paca | a South American rodent, the spotted CAVY. |
| porcupine | a large spiny rodent of various kinds. |
| porcupinish+ porcupiny | like a porcupine. |
| porpentine | a Shakespearean word for porcupine. |
| rat | |
| ratlike | like a rat. |
| rattish | like a rat. |
| ratton rottan rotten | a rat. Worth remembering that ROTTEN, therefore, takes an —S hook. |
| rodential | like a rodent. |
| scaletail | a type of squirrel. |
| sciurid | a member of the squirrel family. |
| sciurine sciuroid | of or relating to squirrels or chipmunks. |
| sewellel | the mountain beaver, a squirrel-like burrowing rodent of NW coastal regions of N. America. [Chinook shewallal, a robe of its skin]. |
| siksik | an arctic ground squirrel. |
| souslik suslik | a ground squirrel. |
| spermophile | a member of family of seed-loving rodents. |
| springhaas | a S. African nocturnal rodent > SPRINGHAAS or SPRINGHASE. |
| squirrel | also a verb: to store away, hide > SQUIRRELED/SQUIRRELLED. |
| squirrely | like a squirrel. |
| taguan | a giant flying squirrel of SE Asia. |
| tucotuco tucutuco tucutucu | an American rodent of mole-like habits. |
| urson | the Canadian porcupine. |
| viscacha | see BISCACHA. |
| viscachera | a settlement of VISCACHAS. |
| vole | any of numerous blunt-nosed, short-eared, mouselike or ratlike rodents, including the so-called water rat and some fieldmice. |
| volelike | like a vole. |
| woodchuck | a common large North American marmot, aka GROUNDHOG. |
| woodmouse | a mouse living in woodland. |
| woodrat | another name for the pack-rat. |
| xerus | an African squirrel > XERUSES. |
| zizel | the ground-squirrel. [Ger. Ziesel, chipmunk]. |