age

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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)
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

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

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

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)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Growth status and menarcheal age among adolescent schoolgirls of Punjab.
A study of menarcheal age in Northern Iran (Rasht).
Interestingly, decreased menarcheal age was independently correlated with decreased physical activity of adolescents, as well as with parents' having a limited educational status.
The study's mean age of menarche is lower than that which was found in Canadian girls according to a study conducted in 2010 (12.721.05 years)17 and that in American girls (12.34 years)6 or even in Turkish (12.74 years)18 or Indian (13.7 years) girls.19 The average menarcheal age in Indo-Pakistani girls by another study done in 1991 was demonstrated to be 13.060.20 years.10
Menarcheal age in Turkey: Secular trend and socio-demographic correlates.
Secular trends in menarcheal age among Ghanaian women in Accra.
Menarcheal age and growth pattern of Indian girls adopted in Sweden.
This study was conducted to investigate the association between early menarcheal age and risk of type 2 diabetes and pre-diabetes in a population-based cohort study of the Tehran Lipid and Glucose Study (TLGS).
The relation of menarcheal age to anthropometric profiles in korean girls.
It has been confirmed that age at menarche is influenced by geographical location, and differs by race and ethnicity.3 The variability involves genetic factors, as studies on heritability of menarcheal age indicate,4 although the molecular determinants remain unidentified.
So, the objectives of this study was to determine the menarcheal age of school going girls.(age group 12 year to 16 year) and also to evaluate the effect of factors like Socio-economic status, Nutritional status, and Participation in games/ physical activity on menarcheal age in school going girls in Jhalawar.