Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. Deterioration of intellectual faculties, such as memory, concentration, and judgment, resulting from an organic disease or a disorder of the brain. It is sometimes accompanied by emotional disturbance and personality changes.
- n. Madness; insanity. See Synonyms at insanity.
Century Dictionary and Cyclopedia
- n. An extremely low condition of the mental function; profound general mental incapacity. It may be congenital (idiocy) or acquired. Acquired dementia may be a primary insanity, or it may form the final stage of mania or melancholia.
Wiktionary
- n. pathology A progressive decline in cognitive function due to damage or disease in the brain beyond what might be expected from normal aging. Areas particularly affected include memory, attention, judgement, language and problem solving.
- n. madness or insanity
GNU Webster's 1913
- n. Insanity; madness; esp. that form which consists in weakness or total loss of thought and reason; mental imbecility; idiocy.
WordNet 3.0
- n. mental deterioration of organic or functional origin
Etymologies
- Latin dēmentia, madness, from dēmēns, dēment-, senseless; see dement. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“Bleuler believed, however, that the term dementia praecox was too specific and did not always fit the clinical course, which he believed more variable than originally described.”
Simon & Schuster: The Neuropsychiatric Guide to Modern Everyday Psychiatry
“The term dementia should refer to irreversible conditions.”
“The word dementia comes from the Latin de meaning "apart" and mens from the genitive mentis meaning "mind".”
“Alzheimer's disease is a progressive brain disorder characterized by dementia, which is a loss of memory and cognitive thinking skills.”
The Huffington Post: S.Z. Berg: Leeza Gibbons on Remembering Alzheimer's Caregivers
“Having been around enough persons who live with what is commonly called dementia, I could see why.”
The Huffington Post: Marguerite Manteau-Rao: Alzheimer's in the Media
“The culture-change philosophy of person-centered care that has been making waves throughout long-term dementia care facilities in the U.S. and other countries represents a step in the right direction.”
The Huffington Post: Marguerite Manteau-Rao: Alzheimer's in the Media
“Never before have so many families had to deal with long-term dementia in someone they love.”
“Although her spouse suffering from elderly dementia is somewhat removed from a confrontation with his kids and Rosemarie over welcoming back the person who betrayed them, Kate Veitch provides a strong relationship tale of a shattered family who may find it is too late to reconcile as defense mechanisms have become forty year habits.”
Without a Backward Glance- Kate Veitch « The Merry Genre Go Round Reviews
“Such negativity can be traced back to the etymology of the word dementia itself: from Latin 'demens', de (out of) mens (mind).”
The Huffington Post: Marguerite Manteau-Rao: Overcoming the Alzheimer's Negativity Bias
“The geriatric vote shows just how much dementia is a problem in Florida voting process ... carolinas”
Lists
These user-created lists contain the word ‘dementia’.
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EN - fine scholarly language
exhort, accretion, twenty-nine, atrophy, additive, brilliantly, interreligious, empiricism, pathologic, limitless, half-century, vigilant and 488 more...
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probablyankita's list
Words are all I have to take your heart away
apartheid, techno-klutz, logorrheic, gordian knot, anodyne, odor of sanctity, finders keepers, foot-in-mouth dis..., dutch uncle, masquerade, smoke signals, furtive glance and 320 more...
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Words that are also movies
Unabashedly stolen from a comment made by courier12.
vertigo, serendipity, casablanca, psycho, jaws, fantasia, stagecoach, network, rocky, giant, platoon, unforgiven and 285 more...
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Psychology
stockholm syndrome, stereotype, ergonomics, human-computer in..., prejudice, neo-luddism, stress, trauma, psychopathology, psychotic, neurosis, depression and 180 more...
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SCIE - neurology
abducens.....draw..., ablation.....carr..., acetylcholine......., adrenalin.....nea..., afferent.....to c..., agnosia.....no kn..., alar.....wing-like, alexia.....no words, alveus.....canal, amacrine.....no l..., ambidextrous........, ambiguus.....doub... and 701 more...
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BIOL - the brain
ruptured blood ve..., clot, pressure on a blo..., tumor, brain region, comprehension of ..., production of mea..., autonomic nervous..., conservation of t..., catecholamine, arousal, regulation of sleep and 564 more...
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It's All Just Words.
quixotic, penisaurus rex, plibt, pot, polaroid, gemütlichkeit, hey! pooper scoop..., nowhere, anywhere, somewhere, elsewhere, wherever and 80 more...
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You are the all-singing, all-dancing ...
Words from Fight Club (novel/film)
nitric acid, mischief, mayhem, soap, murder-suicide, bitch tits, seminoma, pornographic, chakra, dementia, steroids, tumor and 3 more...
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gre2
aberrant, aberration, aboveboard, abrasive, abstemious, acme, admonish, affable, affluent, alacrity, allegory, alleviate and 1907 more...
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diseases that make lovely baby girl's...
usually i try to restrict this to sexually transmitted diseases, but some of the others are just so musical. Syphilis, it should be noted, would make a lovely boy's name, but that is outside the sc...
gonorrhea, chlamydia, roseola, rubella, angina, atrophy, candida, cholera, jaundice, palsy, leukemia, alopecia and 50 more...
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geneintoledoohio's list
serendipity, disquiet, sobriety, dementia, sick, disillusioned, caffeine, sage, bastard, brother, son, word and 3 more...
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the first list
an immense, grandiloquent list that loads like a thousand years sentence in stone. new words are in the other lists.
ridiculous, brummagem, predicament, sanctimonious, vapid, eschew, admonish, auspicious, capitulation, enumerate, lachrymose, tenet and 1648 more...
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ChortleGiggleSnort
Significant Words- Guiding you on your path to Snazzibility
flimsy, feeble, ranting, ramble, narky, snazzy, yoghurt, bulbous, pustule, globulous, geranium, megalomaniac and 521 more...
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Twitter favorites
The new favourite words of people on Twitter.
A script searches Twitter for "X is my new favorite word" and adds it to this list.
See also:
unfathomably, glice, cuh, fab, ciggaty, doll, thuggin, oxymoronic, pineapple, succubutt, griming, cheeky and 2369 more... -
words found to be generally pleasing
alabaster, mahogany, camphor, coalesce, spire, portmanteau, gadabout, palaver, dolor, dour, dun, luminesce and 610 more...
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newGRE
mostly from magoosh
imbue, verge on, nonchalant, deliberate, timorous, futile, provisional, dissect, checked, tinged, alluring, visionary and 1046 more...
Tweets
Looking for tweets for dementia.

Louises "If we ask Sheila then we can't ask Ron. If I have kippers now then it's quiche for tea. Four score years is about all the ifs and thens you can take. Dementia's the sane realisation you just can't be doing with all that any more". "The Last Werewolf" by Glen Duncan Feb 25, 2012
Kristianto2010 His father had developed dementia and began to lose memories of even his family. May 8, 2011