The term hibernator refers to an animal that undergoes hibernation, a state of dormancy during cold months. There are numerous synonyms for the term, including winter sleeper, torpid creature, deep sleeper, and hibernating animal. Other similar words include dormouse, hedgehog, marmot, and bear, which are all known for their ability to hibernate during the winter season. These animals lower their metabolism and body temperature to conserve energy and survive the harsh winter conditions. Hibernation is a fascinating adaptation that allows certain species to survive in hostile environments, and the varied synonyms for hibernator capture the diversity and complexity of this remarkable phenomenon.