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English definition of “hypothesis”

hypothesis

noun [C]  /hɑɪˈpɑθ·ə·sɪs/ (plural hypotheses  /hɑɪˈpɑθ·əˌsiz/) us  
science an idea or explanation for something that is based on known facts but has not yet been proven: Several hypotheses for global warming have been suggested.
(Definition of hypothesis from the Cambridge Academic Content Dictionary © Cambridge University Press)
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