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单词 climacteric
释义

climacteric

/klʌɪˈmakt(ə)rɪk / /ˌklʌɪmakˈtɛrɪk /
noun
1A critical period or event: the first major climacteric in twentieth-century poetry...
  • The year 1981 was a major climacteric for the politicization of policing, most obviously because of the urban riots, unprecedented in the twentieth century.
  • The sight of him obediently doing this is an awe-inspiring climacteric in his career.
  • But the First World War shocked even him, and that was probably a climacteric.
2 Medicine The period of life when fertility and sexual activity are in decline; (in women) menopause: most women do not experience significant psychological problems at the climacteric...
  • Whatever the nomenclature, be it male menopause or climacteric or age related hypotestosteronaemia, men presenting with symptoms outlined in the box should be investigated.
  • A transitional period occurs prior to menopause termed the climacteric or perimenopause.
  • Lock starts the chapter with an interesting historical review of the emergence of the female climacteric or menopause in medical and psychoanalytic discourse.
3 Botany The ripening period of certain fruits such as apples, involving increased metabolism and only possible while still on the tree: ripening accompanied by a sharp rise in respiration, the so-called climacteric...
  • In climacteric fruits such as peaches and tomato, ripening is associated with a characteristic burst of respiration which correlates with an increase in ethylene production.
  • It is thought that the increase in ethylene responsiveness during petal development culminates in the ethylene climacteric.
  • Thus it appears that some aspects of ethylene-dependent gene expression are conserved between climacteric fruits such as melon and tomato.
adjective
1Having extreme and far-reaching implications or results; critical: Britain must possess so climacteric a weapon in order to deter an atomically armed enemy...
  • Given these emphases on significant dates, it may not be coincidental that the Ara Pacis was begun during the year in which Augustus reached the climacteric age of fifty.
  • The fact that such a climacteric event of our history is not being taught is disconcerting.
  • There are two aspects of this climacteric event to be considered in relation to the history of our civilization.
2 Medicine Occurring at, characteristic of, or undergoing the climacteric; (in women) menopausal: every year adds new symptoms to climacteric syndrome...
  • The authors conclude that a dosage of 114 mg per day of phytoestrogens for three months does not relieve hot flushes or other climacteric symptoms.
  • In females about 50 years old, various symptoms of climacteric disorders may appear with the decline of ovarian function.
  • Both Western and Chinese herbal traditions have numerous solutions for climacteric women.
3 Botany (Of a fruit) undergoing a climacteric: it doesn’t ripen off the tree, being a climacteric fruit...
  • As a senescing hormone, it promotes leaf-yellowing, climacteric fruit ripening, flower and leaf abscission.
  • In the climacteric fruit tomato, ethylene is perceived by a family of six receptor proteins.
  • Pear are climacteric fruit: their ripening is associated with a burst of autocatalytic ethylene production.

Origin

Mid 16th century (in the sense 'constituting a critical period in life'): from French climactérique or via Latin from Greek klimaktērikos, from klimaktēr 'critical period', from klimax 'ladder, climax'.

Rhymes

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更新时间:2024/9/24 3:22:06