chipmuck

from The Collaborative International Dictionary of English v.0.48
Chipmunk \Chip"munk`\, n. [Indian name.] (Zool.)
   A squirrel-like animal of the genus {Tamias}, sometimes
   called the {striped squirrel}, {chipping squirrel}, {ground
   squirrel}, {hackee}. The common species of the United States
   is the {Tamias striatus}. [Written also {chipmonk},
   {chipmuck}, and {chipmuk}.]
   [1913 Webster]
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