Meaning of pocket mouse

pock'et mouse"

Pronunciation: [key]
  1. any of numerous burrowing rodents, esp. of the genus Perognathus, chiefly inhabiting arid regions of the southwestern U.S. and northern Mexico, having fur-lined cheek pouches and a long tail.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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