HIBERNATION Meaning and
Definition
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Hibernation is a natural biological process exhibited by certain animals in which they enter a state of deep sleep or dormancy, characterized by a marked reduction in metabolism, body temperature, activity levels, and overall energy expenditure. This behavior is primarily observed in cold-blooded animals, mammals, and some reptiles and amphibians.
During hibernation, the animal's body undergoes a series of adaptive physiological changes to ensure survival during periods of food scarcity and extreme environmental conditions. These adjustments include a decreased heart rate, breathing rate, and blood pressure, as well as lowered body temperature and suppressed metabolic processes. The animal enters a prolonged state of torpor, greatly conserving its energy stores.
Hibernation is typically triggered by seasonal changes, such as the arrival of winter, shortening daylight hours, and diminishing food supplies. The animal seeks out a suitable shelter, such as a burrow, den, or underground cavity, where it can safely enter hibernation and conserve heat. Throughout this period, the animal remains in a dormant state, intermittently waking up to drink water or adjust its position.
The duration of hibernation varies among different species. Some animals may hibernate for a few weeks, while others can remain in this state for several months. After the hibernation period, the animal naturally awakens, reestablishes its normal metabolic functions, seeks food, and resumes its regular activities.
Hibernation plays a vital role in an animal's ability to survive harsh conditions, maintain energy reserves, and ensure successful reproduction during favorable seasons.
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A torpid condition in which certain animals pass the cold months.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
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The act of spending winter in seclusion or sleep.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
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Etymology of HIBERNATION
The word "hibernation" derives from the Latin word "hibernatio", which is the noun form of the verb "hibernare". The Latin word "hibernare" can be traced back to the Proto-Indo-European root *ǵʰi̯ebʰ-, meaning "winter" or "cold". In Latin, "hibernare" originally meant "to pass the winter" or "to winter", and it later came to refer specifically to the state of dormancy and inactivity that certain animals enter during the winter months. This term eventually gave rise to the English word "hibernation", which describes the extended period of reduced activity, metabolic slowdown, and dormancy that animals undergo to conserve energy during winter.
Similar spelling words for HIBERNATION
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