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English definition of “postulate”

postulate

verb [I or T] uk   /ˈpɒs.tjʊ.leɪt/ us    /ˈpɑː.stjə-/ formal
to suggest a theory, idea, etc. as a basic principle from which a further idea is formed or developed: [+ that] It was the Greek astronomer, Ptolemy, who postulated that the Earth was at the centre of the universe.

postulate

noun [C] uk   /ˈpɒs.tjʊ.lət/ us    /ˈpɑː.stjə-/ formal
an idea that is suggested or accepted as a basic principle before a further idea is formed or developed from it
(Definition of postulate from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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