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age

1. 
a. a period of history marked by some feature or characteristic; era
b. (capital when part of a name): the Middle Ages; the Space Age
2. Geology palaeontol
a. a period of the earth's history distinguished by special characteristics
b. the period during which a stage of rock strata is formed; a subdivision of an epoch
3. Myth any of the successive periods in the legendary history of man, which were, according to Hesiod, the golden, silver, bronze, heroic, and iron ages
4. Psychol the level in years that a person has reached in any area of development, such as mental or emotional, compared with the normal level for his chronological age
5. of age adult and legally responsible for one's actions (usually at 18 or, formerly, 21 years)

Age

 

in humans, a stage of development that is characterized by specific regularities of formation of the organism and personality and by relatively stable morphophysiological and psychological traits. While age is a stage in the biological maturing of the organism, a process controlled by genetic factors, it is also a concrete result and stage of the social-psychological development of the personality and is determined by the conditions of life, training, and upbringing.

The content and form of training and upbringing are historically composed and varied according to age; in their turn they affect the determination of the boundaries and possibilities of a given age. In contemporary pedagogy and developmental psychology, several ages are differentiated with respect to the known relationships of the boundaries: infancy (from birth to one year); pre-preschool, or early childhood (from one to three); preschool (from three to seven); early school age (from seven to ten years); juvenile, or middle school (from ten to 15); and late school, or early youth (15 to 18 years old). Beyond these limits there is no generally accepted classification in the literature; only old age is considered separately. With the increased longevity noted in the 20th century, gerontology and gerontopsychology have arisen as disciplines to study the problems of prolonging the active life of a human being. Each age has a characteristic structure of cognitive, emotional, and volitional properties and qualities; forms of behavior; types of relationships to the environment; and peculiarities of structure and functioning of various organs and systems of the organism. This structure, however, is not invariable: in the 20th century a general acceleration of the physical and mental development of children has been noted. On the other hand, educational theory, in solving the problem of optimizing training, widens the possibilities of age and the boundaries of acquiring knowledge. Training must take into account not only the level of development achieved but also the development perspectives (the concept of “zones of imminent development,” as formulated by L. S. Vygotskii): the teacher must know not only what is present in a child of a given age but also what can be achieved, given certain conditions, by the child in the near future.

A. V. PETROVSKII

age

[āj]
(biology)
Period of time from origin or birth to a later time designated or understood; length of existence.
(geology)
Any one of the named epochs in the history of the earth marked by specific phases of physical conditions or organic evolution, such as the Age of Mammals.
One of the smaller subdivisions of the epoch as geologic time, corresponding to the stage or the formation, such as the Lockport Age in the Niagara Epoch.

AGE

(aerospace engineering)
References in periodicals archive ?
The 2014 AGER was conducted by Amway, in partnership with the Chair of Strategy and Organization of the School of Management, Technische Universitat Munchen in Munich, Germany.
Oliver Ager has since pleaded guilty to committing fraud and has now been sentenced.
Ager worked as a production accountant on Doctor Who for 20 episodes in 2007 and 2008, while David Tennant played The Doctor.
Sue Atherton, operations manager for Charles Ager, contacted the Herbert Art Gallery & Museum after she learned that it was displaying a pair of Downton Abbey style 'flapper shoes' in its latest fashion exhibition.
Havant council in Hants apologised to Mrs Ager but admitted it did prefer bin handles to face the road.
But police were waiting for Ager at his agency's office last October and found him with two stolen pounds 20 notes.
Lynch responded with a recitation about all he has accomplished in his two years as governor, whereupon Ager asked again about the "selective editing.
As a player Ager captained Llanharan, made over 30 first-team appearances for Cardiff and played Heineken Cup and European Challenge Cup rugby at Caerphilly.
Ager will work alongside Wei Ying-Chiao who is chairman of Tesco's Chinese partner and who will be chairman of their new joint venture.
We are extremely pleased and are looking forward to working with GTIS Partners, which brings both financial and real estate expertise to the partnership," said Antonio Neves, co-CEO of Ager.
At Ketchum, Ager will work across all London practices to mesh consumer insight with creative development.
Ms Ager, who was not present nor represented at the hearing, denied the allegations but the panel found the facts to show unacceptable professional conduct.