thick·​ness | \ ˈthik-nəs How to pronounce thickness (audio) \

Definition of thickness

1 : the smallest of three dimensions length, width, and thickness
2 : the quality or state of being thick
3a : viscous consistency boiled to the thickness of honey
b : the condition of being smoky, foul, or foggy
4 : the thick part of something
7 : layer, ply, sheet a single thickness of canvas

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Examples of thickness in a Sentence

The plank measures two inches in thickness. the length, circumference, and thickness of the log Plywood is available in various thicknesses. Cooking time will vary depending on the thickness of the steak. I added flour to increase the gravy's thickness. I was surprised by the thickness of his accent.
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Recent Examples on the Web It’s also the right thickness to pass as a bow string. Tim Macwelch, Outdoor Life, "9 Tips For Building a Bow (and Arrows) in a Survival Situation," 25 June 2020 Closely related species in these communities show trade-offs between growth rate and drought tolerance along moisture gradients and between bark thickness and the ability to reproduce via underground stems along gradients of fire intensity. Andrew L. Hipp, Scientific American, "How Oak Trees Evolved to Rule the Forests of the Northern Hemisphere," 15 July 2020 However, the tablet is a little unwieldy in thickness and size compared to the more portable Fire HD 8 Plus. Jason Cipriani, CNN Underscored, "The best tablets of 2020," 9 July 2020 Add pork and cook 5-10 minutes per side, depending on thickness. Mary Bergin, Milwaukee Journal Sentinel, "'Embracing the wider world': Spices sell quickly as coronavirus encourages home cooks," 8 July 2020 Only upon closer inspection do the dense, lush textures, subtly uneven surfaces and satisfying thickness of the pieces reveal themselves, encouraging a childlike impulse to sprawl across them. New York Times, "A Designer Who Makes Rugs Based on Screenshots," 7 July 2020 With a total thickness less than 9mm—and without significant compromises on field of view or resolution—these displays could one day make today's bulky VR headset designs completely obsolete. Kyle Orland, Ars Technica, "How holographic tech is shrinking VR displays to the size of sunglasses," 30 June 2020 This increase in dust thickness has led to the dirty looking skies seen across the Caribbean and the historically poor air quality. Judson Jones, CNN, "The historic Saharan dust plume is darkening skies in the Caribbean and will soon stretch into the US," 23 June 2020 The system is complemented by SmartQamutiks—named for a traditional Inuit sled — which use electromagnetic currents to discern ice thickness. Matthew Halliday/undark, Popular Science, "Inuit researchers are leading a scientific movement to understand life on the ice," 29 May 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'thickness.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of thickness

before the 12th century, in the meaning defined at sense 1

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Time Traveler for thickness

Time Traveler

The first known use of thickness was before the 12th century

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Statistics for thickness

Last Updated

31 Jul 2020

Cite this Entry

“Thickness.” Dictionary, Merriam-Webster, Accessed 7 Aug. 2020.

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More Definitions for thickness


How to pronounce thickness (audio)

English Language Learners Definition of thickness

: the distance between the top and bottom or front and back surfaces of something : a measurement of how thick something is
: the quality of being thick
: a layer or sheet of some material


thick·​ness | \ ˈthik-nəs How to pronounce thickness (audio) \

Kids Definition of thickness

1 : the quality or state of being thick
2 : the smallest of three dimensions length, width, and thickness

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