biological clock
nounDefinition of biological clock
: an inherent timing mechanism in a living system that is inferred to exist in order to explain the timing or periodicity of various behaviors and physiological states and processes
Examples of biological clock in a Sentence
Recent Examples on the Web
Making the character a woman also adds the implications of a ticking biological clock into the conversations around her solo lifestyle. — Jessica Derschowitz, EW.com, "Patti LuPone and Katrina Lenk to star in gender-flipped Company on Broadway," 30 Aug. 2019 Nature’s biological clock Phenological shifts are specific to species and location. — Jennifer Fitchett, Quartz Africa, "These scientists tracked South Africa’s sardine run over 66 years," 4 Aug. 2019 This may have to do with your body's circadian rhythms, also know as your biological clock. — Samantha Lauriello, Health.com, "This Is the Best Temperature for Sleeping, According to Experts," 9 July 2019 In some cases, the researchers tinkered with the dinoflagellates’ internal biological clocks, to rob them of their ability to glow during the experimental period. — The Economist, "The bioluminescence people find so attractive is a defence mechanism," 21 June 2019 The later start would better align with their biological clocks and allow students to get more sleep, Beresford said, both of which research has shown is critical to teenagers. — Emma Kate Fittes, Indianapolis Star, "Carmel is considering changing school start times. Here's when students would start.," 14 June 2019 Recent studies show that many types of animals have biological clocks finely tuned to the cycles of the moon, which drives fascinating and sometimes bizarre patterns of behavior. — Douglas Main, National Geographic, "Why oysters close on the full moon—and more odd lunar effects on animals," 17 Apr. 2019 Science and healthy living have extended the biological clock. — Brennan Peterson, chicagotribune.com, "5 myths about infertility," 26 June 2018 When the biological clock turns kids into night owls and day sleepers. — Eva Dwight, USA TODAY, "How do you get teens out of bed during the summer without fighting?," 25 June 2018These example sentences are selected automatically from various online news sources to reflect current usage of the word 'biological clock.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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