gerontology

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aging

 [āj´ing]
the gradual changes in the structure of any organism that occur with the passage of time, that do not result from disease or other gross accidents, and that eventually lead to the increased probability of death as the individual grows older. See also aged and senescence, and see the Atlas on Aging.

ger·on·tol·o·gy

(jer'on-tol'ŏ-jē),
The scientific study of the clinical, sociologic, biologic and psychological phenomena related to aging.
Synonym(s): geratology
[geronto- + G. logos, study]

gerontology

/ger·on·tol·o·gy/ (jer″on-tol´ah-je) the scientific study of aging in all its aspects.

gerontology

(jĕr′ən-tŏl′ə-jē)
n.
The scientific study of the biological, psychological, and sociological phenomena associated with old age and aging.

ge·ron′to·log′i·cal (jə-rŏn′tə-lŏj′ĭ-kəl), ge·ron′to·log′ic (-lŏj′ĭk) adj.
ger′on·tol′o·gist n.

gerontology

[jer′əntol′əjē]
Etymology: Gk, geras, old age, logos, science
the study of all aspects of the aging process, including the clinical, psychological, economic, and sociological issues encountered by older persons and their consequences for both the individual and society.

gerontology

Geriatics The systematic study of aging and age-related phenomena; senescence is attributed to
1. Accumulation of degradation products, coupled with a cell's ↑ inability to metabolize the products and/or.
2. Activation of longevity-determining or aging genes, that may be intimately linked to certain oncogenes–eg, c-fos, which evokes uncontrolled cell proliferation. See Garbage can hypothesis.

ger·on·tol·o·gy

(jer'ŏn-tol'ŏ-jē)
The scientific study of the process and problems of aging.
[geronto- + G. logos, study]

gerontology

The study of the biology, psychology and sociology of ageing. Gerontology is concerned with the changes that occur in the cells, tissues and organs of the body with age, with the natural limits of cell reproduction, the causes of natural cell death, the effects of life style and physical activity on longevity and the psychological and sociological effects of ageing.

ger·on·tol·o·gy

(jer'ŏn-tol'ŏ-jē)
Scientific study of clinical, sociologic, biologic, and psychological phenomena related to aging.
[geronto- + G. logos, study]

gerontology (jer″ontol´əje),

n the comprehensive (physical, psychologic, and social) study of aging.