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pentad |
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pentad [′pen‚tad] (climatology) A period of 5 consecutive days, often preferred to the week for climatological purposes since it is an exact factor of the 365-day year. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| The dinner scene is subjected to two forms of Kenneth Burke's analysis: 1) the dramatic pentad or dramatism, and 2) consubstantiality, or identification. Chemists hooked together five molecular components into a pentad that mimics the early stages of photosynthesis (137: 247). In the latest step toward artificial photosynthesis, chemists at Arizona State University in Tempe have assembled a five-component molecular machine, or pentad, that harvests light energy and uses it to segregate positive and negative charges on opposite ends of the pentad. |
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