Definition of Almagest in English:


Syllabification: Al·ma·gest
Pronunciation: /ˈalməˌjest


(the Almagest)
1An Arabic version of Ptolemy’s astronomical treatise.
More example sentences
  • Finally, the translation of Ptolemy's Almagest furnished important astronomical material.
  • But once they had translated Ptolemy's Almagest, they developed astronomy so quickly that their mark is found at every step.
  • Menelaus's work formed the basis for Ptolemy's numerical solutions of spherical astronomy problems in the Almagest.
1.1 (also almagest) (In the Middle Ages) any celebrated textbook on astrology and alchemy.


late Middle English: from Old French almageste, based on Arabic, from al 'the' + Greek megistē 'greatest (composition)'.

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