senility


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senility

(sənil`ətē), deterioration of body and mind associated with old age. Indications of old age vary in the time of their appearance. Stooped posture, wrinkled skin, decrease in muscle strength, changes in the lens and muscles of the eye, brittleness of bone and stiffness of the joints, and hardening of the arteries (arteriosclerosisarteriosclerosis
, general term for a condition characterized by thickening, hardening, and loss of elasticity of the walls of the blood vessels. These changes are frequently accompanied by accumulations inside the vessel walls of lipids, e.g.
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) are among the physical changes associated with old age. The mental changes associated with senility include impairment of judgment, loss of memory, and sometimes childish behavior. The psychological changes are thought to be related to aging of the cortical brain cells. Whereas the physical changes associated with aging occur in all individuals to some extent, evidence of psychological degeneration is not universal. In common usage, the term senility is applied only to mental deterioration. See geriatricsgeriatrics
, the branch of medicine concerned with conditions and diseases of the aged. Many disabilities in old age are caused by or related to the deterioration of the circulatory system (see arteriosclerosis), e.g.
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; Alzheimer's diseaseAlzheimer's disease
, degenerative disease of nerve cells in the cerebral cortex that leads to atrophy of the brain and senile dementia and, ultimately, death. The disease is characterized by abnormal accumulation of plaques and by neurofibrillary tangles (malformed nerve
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; amnesiaamnesia
, [Gr.,=forgetfulness], condition characterized by loss of memory for long or short intervals of time. It may be caused by injury, shock, senility, severe illness, or mental disease.
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senility

[si′nil·əd·ē]
(geology)
The stage of the cycle of erosion in which erosion of a land surface has reached a minimum, most of the hills have disappeared, and base level has been approached.
(medicine)
Old age and its characteristics.
References in periodicals archive ?
Houpt, because it often occurs in geriatric cats with diagnosed diseases as well as in those for which this behavior may be a sign of senility.
The play explores the themes of senility, loneliness and treachery.
Tony Haygarth "ages up" as the firm's founder, Ken, settling unsteadily into senility while everyone fleeces him.
What of others, who through ageing conditions other than senility, no longer have any quality of life, should we close their final weeks?
And, he discusses how genetic "mismatches" cause the deadly diseases that afflict humanity today: diabetes, AIDS, cancer, and senility, among others.
Caine is especially moving in his portrayal of senility, while Milner, last seen in Skellig and Son Of Rambow, is a smashing little actor.
Both were extremely capable justices forced off the bench--not because their minds were addled with senility, but simply because they'd celebrated their 70th birthdays.
I read somewhere that a flexed mind is the best defense against senility, and most days I want to put as much distance between me and senility as I can.
Jo's morn works at a nursing home, and sometimes Jo helps her there, especially when her beloved grandfather has to be admitted when his senility overwhelms him.
Hit products included Nintendo DS games such as ''Pocket Monster Diamond/Pearl'' and those designed for adults trying to improve their mental functions and prevent senility.
The second point of divergence for Hadjitatsis is that he waits until the last chapter, "The other side of the river," to reveal that these seemingly authentic events are simply distorted versions thereof, twisted out of perspective by of one of the characters, an author subject to both possible senility and vengeful bitterness for losing the wife he adored to his best friend.
I want to reduce the possibility, or at the very least, to delay senility.