The Collaborative International Dictionary
groundhog \ground"hog`\, ground hog \ground" hog`\ (ground"h[o^]g`), n. A reddish brown North American burrowing marmot ( Marmota monax), also called the woodchuck. It hibernates in the winter.
Syn: woodchuck, Marmota monax.
Woodchuck \Wood"chuck`\, n.
(Zo["o]l.) A common large North American marmot ( Arctomys monax). It is usually reddish brown, more or less grizzled with gray. It makes extensive burrows, and is often injurious to growing crops. Called also ground hog.
(Zo["o]l.) The yaffle, or green woodpecker. [Prov. Eng.]
Usage examples of "ground hog".
I suppose I am a ground hog at heart for I disorient very easily when I can't tell the floor from the ceiling.
Furthermore, though I would have turned my nose up at the idea when I was a ground hog back in Diego Borough, horse steak is very tasty.
They were savage-looking sperm, no question, done up in warpaint, looking fierce and mean as a group of Galilean gophers on Galactic Ground Hog day.
A third group believes the length of a jury's deliberation portends guilt or innocence about as reliably as the presence or absence of a ground hog's shadow predicts how long Old Man Winter will stick around in any given year.
Flowers and little gifts would be delivered to her on Ground Hog Day and President Folk's birthday and in celebration of the Lewis and Clark Expedition.