(ת') ספירלי, לולייני

adj. in the form of a spiral, in the form of a coil

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(n.)
A warped surface which may be generated by a straight line moving in such a manner that every point of the line shall have a uniform motion in the direction of another fixed straight line, and at the same time a uniform angular motion about it.
  

(a.)
Spiral; curved, like the spire of a univalve shell.
  

(a.)
Shaped like a snail shell; pertaining to the Helicidae, or Snail family.
  

helicoid /'helikɔid/

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  • (toán học) mặt đinh ốc

• tính từ+ (helicoidal) /'helikɔidəl/
  • (thuộc) mặt đinh ốc

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ELICOIDE. ELICOIDALE