spiral

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“
Generally the opening in the floor for a spiral should be around 100mm larger than the diameter whether the opening is square / rectangular or circular.

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Definitions (76)

Toggle American Heritage definitions American Heritage Dictionary (13)

  1. noun A curve on a plane that winds around a fixed center point at a continuously increasing or decreasing distance from the point.
  2. noun A three-dimensional curve that turns around an axis at a constant or continuously varying distance while moving parallel to the axis; a helix.
  3. noun Something having the form of such a curve: a spiral of black smoke.
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Examples (50)

  • Susie, perhaps you know that our galaxy and the Andromeda spiral are the two big beasts of our local group of galaxies. —  Asimov'sSF,August2006
  • That's called a deflationary spiral, and it is NOT pretty. —  The Skeptical Optimist
  • We found nothing about a conspiracy, but one of the contributing causes of the upward spiral is the high cost of competition in the medical insurance market. —  coloradoan.com - Local News
  • The next leg down in this death spiral is the commercial balloons and the ARM resets. —  Latest Articles
  • Seven: 7 - the center of the spiral is humanity's connection to its source, god, Christ consciousness - or whatever name you prefer. —  Yahoo! Answers: Latest Questions
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Roget's II Roget's II: The New Thesaurus

Allen's Allen's Synonyms and Antonyms

Suggestions Wordniks Suggest

Used in the same context Used in the Same Context

arc ·  swirl ·  curve ·  circular ·  twist ·  curl ·  coil ·  vertical ·  loop ·  triangle ·  circle ·  staircase

Used in the same contextWord Family

spiral:   spirals ·  spiralled
Roget's II: The New Thesaurus, Third Edition by the Editors of the American Heritage® Dictionary. Copyright © 2003, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Etymologies (3)

Toggle American Heritage etymologies American Heritage Dictionary (1)

  1. Medieval Latin spīrālis, of a spiral, from Latin spīra, coil; see spire2.

Toggle Century etymologies Century Dictionary (2)

  1. from French spiral = Spanish Portuguese espiral = Italian spirale = Dutch spiraal = G. Swedish Danish spiral, from Middle Latin spiralis, spiral (linea spiralis, a spiral line, a spiral), from Latin spira, a coil, spire: see spire.
  2. from spiral, n.
 

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/ˈspaɪrəl/
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