- A rodent of the family Sciuridae, belonging to the group of large ground squirrels known as marmots. Scientific name: Marmota monax.
Etymology: By alteration of Cree otchek or Ojibwe ojiig (fisher, marten), subsequently redefined as groundhog.
- How much wood would a woodchuck chuck if a woodchuck could chuck wood? — popular tongue-twister.
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Full Definition of woodchuck