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单词 analemma
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WordReference Random House Unabridged Dictionary of American English © 2024
an•a•lem•ma  (an′l emə),USA pronunciation n., pl. an•a•lem•mas, an•a•lem•ma•ta 
    (an′l emə tə).USA pronunciation 
  1. Astronomya scale shaped like the figure 8, showing the declination of the sun and the equation of time for each day of the year.
  • Greek análēmma support
  • Latin: pedestal of a sundial, sundial
  • 1645–55;
an•a•lem•mat•ic  (an′l e matik),USA pronunciation adj. 
Collins Concise English Dictionary © HarperCollins Publishers::
analemma /ˌænəˈlɛmə/ n ( pl -mas, -mata / -mətə/)
  1. a graduated scale shaped like a figure eight that indicates the daily declination of the sun
Etymology: 17th Century: from Latin: sundial, pedestal of sundial, from Greek analēmma pedestal, from analambanein to support

analemmatic /ˌænəlɛˈmætɪk/ adj
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