英语词汇“epicycle”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	epicycle
释义	Word Frequency epicycle (ˈɛpɪˌsaɪkəl) noun 1. astronomy (in the Ptolemaic system) a small circle, around which a planet was thought to revolve, whose centre describes a larger circle (the deferent) centred on the earth 2. a circle that rolls around the inside or outside of another circle, so generating an epicycloid or hypocycloid Derived forms epicyclic (ˌɛpɪˈsaɪklɪk, -ˈsɪklɪk) or epicyclical (ˌepiˈcyclical) adjective Word origin C14: from Late Latin epicyclus, from Greek epikuklos; see epi-, cycle
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