ageing of population

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• Population ageing — or population aging (see English spelling differences) occurs when the median age of a country or region rises. This happens because of rising life expectancy or declining birth rates. Excepting 18 countries termed demographic outliers by the… …   Wikipedia

• ageing — ageing, sociology of The physiological process of growing older has vital social and cultural dimensions which affect what is often seen as a purely biological inevitability. Age is a cultural category and its meaning and significance vary both… …   Dictionary of sociology

• Population decline — can refer to the decline in population of any organism, but this article refers to population decline in humans. It is a term usually used to describe any great reduction in a human population.[1] It can be used to refer to long term demographic… …   Wikipedia

• Population dynamics — is the branch of life sciences that studies short term and long term changes in the size and age composition of populations, and the biological and environmental processes influencing those changes. Population dynamics deals with the way… …   Wikipedia

• Ageing — This article is about human ageing. For other uses, see Ageing (disambiguation). A human face showing signs of ageing Ageing (British English) or aging (American English) is the accumulation of changes in a person over time.[1] Ageing in humans… …   Wikipedia

• Ageing of Europe — Percentage of the population over 65 in Europe The Ageing of Europe, also known as the greying of Europe, is a demographic phenomenon in Europe characterized by a decrease in fertility, a decrease in mortality rate, and a higher life expectancy… …   Wikipedia

• ageing — I UK [ˈeɪdʒɪŋ] / US adjective a) an ageing person is becoming old a town with an ageing population b) an ageing machine, vehicle, or building is too old and no longer useful II UK [ˈeɪdʒɪŋ] / US noun [uncountable] the process of becoming old a… …   English dictionary

• ageing — [ˈeɪdʒɪŋ] adj I becoming old a town with an ageing population[/ex] II noun [U] ageing [ˈeɪdʒɪŋ] the process of becoming old the ageing process[/ex] …   Dictionary for writing and speaking English

• Population — In biology a population is the collection of inter breeding organisms of a particular species; in sociology, a collection of human beings. A population shares a particular characteristic of interest, most often that of living in a given… …   Wikipedia

• Population dynamics of fisheries — A fishery is an area with an associated fish or aquatic population which is harvested for its commercial or recreational value. Fisheries can be wild or farmed. Population dynamics describes the ways in which a given population grows and shrinks… …   Wikipedia

• ageing — 1 BrE usually aging AmE adjective (only before noun) becoming old, and usually less useful, attractive, suitable etc: aging movie stars | an ageing population 2 BrE usually aging AmE noun (U) the process of getting old: airlines with ageing… …   Longman dictionary of contemporary English