from The Century Dictionary.
- noun One of three superfamilies of simplicident Rodentia, comprising the Anomaluridæ, Sciuridæ, Ischyromyidæ (fossil), Haplodontidæ, and Castoridæ, or the scaletails, squirrels in a broad sense, sewellels, and beavers: correlated with Myomorpha and Hystricomorpha, and also with Lagomorpha of the duplicident series.
from the GNU version of the Collaborative International Dictionary of English.
- noun plural (Zoöl.) A tribe of rodents containing the squirrels and allied animals, such as the gophers, woodchucks, beavers, and others.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun large more or less primitive rodents: squirrels; marmots; gophers; beavers; etc.
Sorry, no etymologies found.
Unlike as this animal is externally to the squirrels, its anatomy warrants its position in the Sciuromorpha, otherwise one would feel inclined to include it in the next section.
The Simple-toothed Rodents are more numerous, and consist of about eighteen families arranged under three sections, which are _Sciuromorpha_, or Squirrel-like Rodents, _Myomorpha_ or