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helicoid |
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helicoid [′helĀ·ə‚kȯid]
(invertebrate zoology) Of a gastropod shell, shaped like a flat coil or flattened spiral. (mathematics) A surface generated by a curve which is rotated about a straight line and also is translated in the direction of the line at a rate that is a constant multiple of its rate of rotation. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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