hiber- +

How bears power-nap as they hibernate.

A drug-induced state of narcosis and reduced metabolic activity resembling the natural state of hibernation exhibited by certain animal species.

1. A place which serves as protection, or shelter, in winter.
2. Winter quarters; such as, the hibernacle of an animal or a plant.
3. In botany, the winter-quarters of a plant; such as, a bulb or a bud, in which the embryo of a future plant is enclosed by a scaly covering and protected from injuries during winter.

1. A place, or shelter, which serves for protection of animals, etc., during winter while they are hibernating.
2. The domicile in which an animal hibernates or stays during the winter.
3. The wintertime nest chamber of a hibernator.

1. A reference to winter.
2. An indication of the season of the year known as winter.
3. Relating to, or occurring in winter.

1. To spend the winter in a state like sleep or in an inactive condition; such as bears, woodchucks, and some other wild animals.
2. To be in a dormant state resembling sleep over the winter while living off the reserves of body fat, with a decrease in body temperature and pulse rate, and slower metabolism.

Animals that hibernate include bears, bats, and many amphibians.

3. To become less active, especially by staying at home rather than going out to socialize.
4. To withdraw or be in seclusion; to retire from contact with others.
5. To winter in a place with a milder climate: "Each winter finds us hibernating in Florida or Hawaii."

Creatures that have spent the winter months in a state similar to sleep: "The bears hibernated in the cave until nearly spring."

1. Spending the winter in a shelter in a dormant condition; such as, bears and certain other animals.
2. Withdrawing or being in seclusion; retiring from contact with other people.

1. An inactive state resembling deep sleep in which certain animals living in cold climates pass the winter.
2. The act or condition of passing the winter in a torpid or resting state.
3. A dormant, sleep-like state characterized by lower body temperature and reduced energy consumption and heart and breathing rates.
4. A physiological condition occurring in some animals in response to cold winter conditions; for example, bears, some bats and birds, snakes, frogs, and some turtles.

Hibernation protects the animal from cold and reduces the need for food during the winter season when food is scarce.

It is presumed that hibernation is triggered, and ended, by certain environmental cues; such as, day length and circ-annual rhythms, although this is not known with certainty.

Any animal which hibernates: "Cold-blooded animals, and even warm-blooded hibernators, can survive a far greater reduction of their body temperatures."

A benign, lobulated and encapsulated tumor made up of granular or vacuolated, round, acidophilic cells having the appearance of brown fat.

It usually involves the shoulder and neck region of young adults. Also called: fetal fat cell lipoma, lipoma fetalocellulare, or brown fat tumor.