Definitions
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noun (nychthemera, pl2=nychthemerons)
  1. A period of one day and and one night, a date : in the West, this is a period of 24 consecutive hours.
    • 1839: The Foreign Quarterly Review, volume XXII, page 181; published by Black and Armstrong (London)
    • :Ideler passes over the Indians, and with good reason ; for they had not the week, and could not have had it, since they divided the into thirty hours, which the following out the same method would give rise to an entirely different series of planetary regents.
    • 1879: Muḥammad ibn Aḥmad BÄ«rÅ«nÄ«, C. Edward Sachau, The Chronology of Ancient Nations: An English Version of the Arabic Text of the Athí¢r-ul-Bí¢kiya ...
    • :Now, the Arabs assumed as the beginning of their Nychthemeron the point where the setting sun intersects the circle of the horizon. Therefore their Nychthemeron extends from the moment when the sun disappears from the horizon till his disappearance on the following day.
    • 1936: Osiris, page 112, published by the History of Science Society
    • :For the division of the into equal parts, we are indebted to the Sumerians. Following the fiction of the ideal year of 12 months of 30 days to each, they divided the into 12 danna (46), each of 30 giÅ¡ (47). The relation of the danna, which is the equivalent of two of our hours (48), to the day is like the relation of the month to the year, and ...
    • 1998: James Evans, The History and Practice of Ancient Astronomy
    • :Geminus says in his Introduction to the Phenomena (VI, 1-4) that the (a day and night together) is not of constant length.
    • 2000: William Wilson Hunter Sir, Sekharipuram Vaidyanatha Viswanatha, Clarisse Bader, The Indian Empire: its people, history, and products
    • :The Hindus consider the day as the first, the night as the second, part of the . There-fore they call the former Sí¢vana, i.e. a day depending on the rising of the sun. Besides, they call it Manu-shyí¢horí¢tra, i.e. a human day, because, in fact, the great mass of their people do not know of any other kind of day but this.
Translations: 
  • French: nycthémère , nyctémère
    (trans-mid)
    (trans-bottom)
Etymology: From ' (nychthemeron), from Ancient Greek ' (nykh, nykt-, meaning night) + á (hÄmera, meaning day).


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