biological clock


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Related to biological clock: circadian rhythm

biological clock

n.
1. An internal mechanism in organisms that controls the periodicity of various functions or activities, such as metabolic changes, sleep cycles, or photosynthesis.
2.
a. The time period during which a person who desires to have a biological child, especially a woman approaching the decline of reproductive capability, is still able to do so.
b. The capacity to be fertile, especially in such a woman: She was eager to have a child before her biological clock stopped working.

biological clock

n
1. (Biology) an inherent periodicity in the physiological processes of living organisms that is not dependent on the periodicity of external factors
2. (Biology) the hypothetical mechanism responsible for this periodicity

biolog′ical clock′


n.
1. an innate mechanism of the body that regulates its rhythmic and periodic cycles, as that of sleeping and waking.
2. such a mechanism perceived as inexorably marking the passage of one's youth and esp. one's ability to bear children.
[1950–55]

bi·o·log·i·cal clock

(bī′ə-lŏj′ĭ-kəl)
An internal system of organisms that controls the cycle of various functions, such as sleep cycles in mammals and photosynthesis in plants. See Note at circadian rhythm.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.biological clock - an innate mechanism in living organisms that controls the periodicity of many physiological functionsbiological clock - an innate mechanism in living organisms that controls the periodicity of many physiological functions
mechanism - a natural object resembling a machine in structure or function; "the mechanism of the ear"; "the mechanism of infection"
Translations
biológiai óra

biological clock

biological clock

norologio biologico
References in periodicals archive ?
Bindu Chamarthi, endocrinologist at Brigham and Women's Hospital and consultant medical director to VeroScience, investigates the effects of bromocriptine-QR in type 2 diabetes subjects on high dose insulin therapy, and seven studies from VeroScience explore the interactions of brain dopamine neurons with the biological clock in the regulation of metabolism and of the body's response to diets that predispose to diabetes.
Gynaecologist Dr Geeta Nargund called on the Government to introduce fertility lessons into the national curriculum so that girls are fully informed about their biological clock.
ISLAMABAD -- Scientists have found a "reset button" for our biological clock, paving the way for more effective treatment of jet lag, the negative health effects of shift work and seasonal affective disorder (SAD).
TEHRAN (FNA)- A biological clock was discovered by researchers that provides vital clues about how long a person is likely to live.
People have a biological clock deep in the brain and different clocks in various parts of the body.
Both theses focused on the correlation between light and health--Bae's "Urban Therapy" explored a side effect of the increasing amount of time spent indoors and natural biological rhythms, and Ryan's "The Impact of Weekly Lighting Condition on Performance, Sleepiness, and Mood" focused on the biological clock over the course of a week.
For years, you see, lots of studies documented the female biological clock.
On Page 6, molecular biology writer Tina Hesman Saey reports that a marine worm's newly discovered biological clock uses moonlight to time its monthly spawning.
29 ( ANI ): A brain chemical, called VIP, which desynchronizes the cells in the biological clock helps the clock adjust more quickly to abrupt shifts in daily light/dark schedules such as those that plague modern life, according to a research.
YOUR biological clock may have a role to play in your metabolism and chances of developing diabetes, scientists reported in a new study released on Sunday.
Scientists are claiming this will effectively stop the biological clock.
They cover the human biological clock from genes to chronotherapy, photosensitivity as a disregarded attribute to analyze photo-periodic clocks, respiration rhythm and quality of sleep in the total wellness and development of a child, circadian sleep-wake rhythms in pre-term infants, interactions between the circadian and the immune systems as a framework for understanding disease, the spider monkey Ateles geoffroyi as a case study in the chronoecology of neotropical primates, the role of clocks and chaos in a biodynamic approach to cancer, and experimental findings and analytical properties of a klepsydraic model of internal time presentation.

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