plural noun Is·chy·ro·my·i·dae \ˌiskə̇rōˈmīəˌdē\

Definition of Ischyromyidae

  1. :  a family of primitive extinct sciuromorph rodents widely distributed in the northern hemisphere from the Lower Eocene to the Upper Oligocene, distantly related to the mountain beaver, and distinguished by low-crowned generalized cheek teeth

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Origin and Etymology of ischyromyidae

New Latin, from Ischyromys, type genus (from Greek ischyros strong + mys mouse) + -idae; akin to Greek echein to have, hold — more at mouse

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a trip made at another's expense

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