SENESCENCE Meaning and
Definition
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Senescence is a noun that refers to the process of growing old or aging in living organisms. It is a biological phenomenon observed across different species, including plants, animals, and humans. The term is derived from the Latin word "senēscere," meaning "to grow old."
In the context of biology, senescence is characterized by a gradual decline in a variety of physiological functions and the deterioration of tissues and organs over time. This natural deterioration eventually leads to the inability of an organism to function at its optimal level, making it more susceptible to diseases and death.
Senescence can manifest in various ways, depending on the species. It may involve physical changes such as wrinkling skin, graying hair, or the onset of age-related diseases. Moreover, senescence is not limited to external changes but also affects cellular and molecular processes within the organism.
Theories and scientific studies have sought to understand the underlying mechanisms and causes of senescence, including genetic factors, environmental influences, and the impact of lifestyle choices. While aging is a universal process, the rate and degree of senescence can vary widely between individuals and even within different tissues of the same organism.
In summary, senescence is the natural and gradual process of aging in living organisms, leading to a decline in physiological functions and increased vulnerability to disease.
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The state of growing old; beginning old age.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
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The state of growing old; decay by time.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
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Etymology of SENESCENCE
The word "senescence" comes from the Latin word "senex", which means "old man" or "old age". This Latin term is itself derived from the Proto-Indo-European root word *sen, meaning "old" or "to age". The suffix "-escence" in senescence indicates a process or state of being, particularly related to growth or development. Therefore, senescence refers to the natural process of aging or growing old.
Similar spelling words for SENESCENCE
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