We don't have synonyms for rhizomyid yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are rhizoid, rhizomic and rhizomys.
(n) :
(zoology) Any rodent in the family Rhizomyidae, now considered to be the spalacid subfamily Rhizomyinae, comprising the bamboo rats and mole rats (as opposed to the naked mole rats in the subfamily Spalacinae).
(n) :
(zoology) Any rodent in the family Rhizomyidae, now considered to be the spalacid subfamily Rhizomyinae, comprising the bamboo rats and mole rats (as opposed to the naked mole rats in the subfamily Spalacinae).