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2 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 cissoid
 蔓葉線

From: Webster's Revised Unabridged Dictionary (1913)

 Cis·soid n.  Geom. A curve invented by Diocles, for the purpose of solving two celebrated problems of the higher geometry; viz., to trisect a plane angle, and to construct two geometrical means between two given straight lines.
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