helical
[hel-i-kuh l, hee-li-]
- pertaining to or having the form of a helix; spiral.
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Origin of helical
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for helical
Historical Examples
The centrifugal strain due to this is balanced by helical springs.
Steam TurbinesHubert E. Collins
The translation of a body in helical motion is called its advance.
The Ford transverse rear spring was supplemented by two helical springs placed vertically between the Ford and tractor frames.
Deeds of a Great RailwayG. R. S. Darroch
He invented the helical form of the balance spring and a form of chronometer escapement much like Earnshaw's.
Time Telling through the AgesHarry Chase Brearley
To give the water a rotary motion he had inserted a helical piece of angle iron, and so prevented deposition.
helical
- of or shaped like a helix; spiral
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for helical
Online Etymology Dictionary, © 2010 Douglas Harper
helical
(hĕl′ĭ-kəl, hē′lĭ-)- Of or having the shape of a helix; spiral.
- Having a shape approximating that of a helix.
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The American Heritage® Stedman's Medical Dictionary
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