单词	semi-cycloid
释义	> as lemmas semi-cycloid semi-cycloid n. Brit. /ˈsɛmɪˌsʌɪklɔɪd/ , U.S. /ˈsɛˌmaɪˌsaɪˌklɔɪd/ , /ˈsɛmiˌsaɪˌklɔɪd/ ΚΠ 1695 J. Wallis in Philos. Trans. (Royal Soc.) 19 111 The Semicycloid Figure. 1796 C. Hutton Math. & Philos. Dict. at Cycloid Two equal semicycloids OP, OQ. extracted from semi-prefix < as lemmas
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