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2 definitions found

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

 gyroidal
 (a.)螺旋形的

From: Webster's Revised Unabridged Dictionary (1913)

 Gy·roid·al a.
 1. Spiral in arrangement or action.
 2. Crystallog. Having the planes arranged spirally, so that they incline all to the right (or left) of a vertical line; -- said of certain hemihedral forms.
 3. Opt. Turning the plane of polarization circularly or spirally to the right or left.
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