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  1. Dictionary
    aged

    adjective

    • 1. having lived for a specified length of time; of a specified age: "young people aged 14 to 18"
    • 2. having lived or existed for a long time; very old: "aged men with white hair"

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    More definitions, origin and scrabble points

  2. www.britannica.com › science › aging-life-processAging | Definition, Process, & Effects | Britannica

    4 days ago · Aging, progressive physiological changes in an organism that lead to senescence, or a decline of biological functions and of the organism’s ability to adapt to metabolic stress.

    • Nongenetic Theories

      Aging - Senescence, Lifestyle, Environment: Other theories...

    • TERC

      Other articles where TERC is discussed: aging: Genetic...

    • Survivorship Curve

      There are three general types of curves. The Type I curve,...

  3. en.wikipedia.org › wiki › Old_ageOld age - Wikipedia

    4 days ago · Old age is the range of ages for people nearing and surpassing life expectancy. People of old age are also referred to as: old people, elderly, elders, seniors, senior citizens, or older adults. [1] Old age is not a definite biological stage: the chronological age denoted as "old age" varies culturally and historically. [2]

  4. en.wikipedia.org › wiki › AgeingAgeing - Wikipedia

    3 days ago · Ageing (or aging in American English) is the process of becoming older. The term refers mainly to humans, many other animals, and fungi, whereas for example, bacteria, perennial plants and some simple animals are potentially biologically immortal. [1]

  5. www.britannica.com › science › old-ageOld age | Challenges, Benefits & Lifestyle Changes | Britannica

    Jul 1, 2024 · old age, in human beings, the final stage of the normal life span. Definitions of old age are not consistent from the standpoints of biology, demography (conditions of mortality and morbidity), employment and retirement, and sociology.

    • The Editors of Encyclopaedia Britannica

  6. www.britannica.com › science › human-agingHuman aging | Description, Physical Effects, & Psychological...

    Jul 3, 2024 · Human aging, physiological changes in the human body that lead to senescence, involving declines in biological functions and the ability to adapt to metabolic stress. These physiological developments usually are accompanied by psychological and behavioral changes and social and economic changes.

  7. www.merriam-webster.com › dictionary › of ageOf age Definition & Meaning - Merriam-Webster

    Jul 3, 2024 · Definition. Example Sentences. Entries Near. Show more. Save Word. of age. idiom. : having existed for a specified period of time. The student was 20 years of age. Examples of of age in a Sentence.

  8. www.merriam-webster.com › dictionary › agingAging Definition & Meaning - Merriam-Webster

    The meaning of AGING is present participle of age.