plural noun
Ge·o·my·i·dae | \ˌjēōˈmīəˌdē\

Definition of Geomyidae 

: a family of North American sciuromorph burrowing rodents comprising the pocket gophers and extinct related forms

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History and Etymology for Geomyidae

New Latin, from Geomys, type genus (from ge- + Greek mys mouse) + -idae

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