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[thik-nis] /ˈθɪk nɪs/
the state or quality of being thick.
the measure of the smallest dimension of a solid figure:
a board of two-inch thickness.
the thick part or body of something:
the thickness of the leg.
a layer, stratum, or ply:
three thicknesses of cloth.
verb (used with object)
to bring (a piece, as a board) to a uniform thickness.
Origin of thickness
before 900; Middle English thiknesse, Old English thicnes. See thick, -ness Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for thickness
  • Rake them into a layer of even thickness and run over them with the lawnmower.
  • But the layers can be alternated to any thickness desired, and inconvenient antigens thus hidden from view.
  • The number of pins raised reflects the thickness of the line.
  • Glaciers are shrinking not only in area but also in thickness.
  • Likewise, in colder years average exoskeleton thickness shrank.
  • When the syrup is dripped from a spoon it will have the thickness of about two threads.
  • Normally the highest part of a tropical glacier gains thickness from snowfall during the wet season, making up for melting below.
  • There seems to be an epidemic of thickness on this question.
  • Whatever you produce joins dozens of other efforts in a stack whose growing thickness doesn't exactly thrill your professor.
  • Pick a smooth stone that fits in your palm, has a uniform thickness, and is neither too heavy nor too light.
British Dictionary definitions for thickness


the state or quality of being thick
the dimension through an object, as opposed to length or width
a layer of something
a thick part
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
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Word Origin and History for thickness

Old English þicness; see thick + -ness.

Online Etymology Dictionary, © 2010 Douglas Harper
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thickness in Medicine

thickness thick·ness (thĭk'nĭs)

  1. The quality or condition of being thick.

  2. The dimension between two surfaces of an object, usually the one of smallest measure.

  3. A layer or stratum.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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