viscosity

English

Etymology

From Middle French viscosité, from Old French viscosité, from Medieval Latin viscositas; analysable as viscous +‎ -ity.

Pronunciation

• (General American) IPA^(key): /vɪsˈkɑsɪti/
• (Received Pronunciation) IPA^(key): /vɪsˈkɒsɪti/

• Audio (US):

  (file)

• Rhymes: -ɒsɪti
• Hyphenation: vis‧cos‧i‧ty

Noun

viscosity (countable and uncountable, plural viscosities)

2. (uncountable) The state of being viscous.

   Synonym: viscousness

   Antonyms: runniness, wateriness, thinness

   Hyponyms: bulk viscosity, elastoviscosity, hyperviscosity, hypoviscosity, gyroviscosity, microviscosity, shear viscosity

   Coordinate terms: fluidity, liquidity, gloopiness, solidity, solidness

   Near-synonym: thickness

4. (countable, physics) A quantity expressing the magnitude of internal friction in a fluid, as measured by the force per unit area resisting uniform flow.

   Coordinate term: lubricity

   • 2018 February 28, Alexander Klotz, “Microcannons firing Nanobullets”, in Softbites‎^[1]:

     The microcannon was seen moving at about a micron per second, it was about 15 microns long, and the high speed photograph was done in water (density of 1 kg/L, viscosity of about 0.001 pascal seconds).

   • 2018 October 3, Youn Young Shim, Rana Mustafa, Jianheng Shen, Kornsulee Ratanapariyanuch, Martin J. T. Reaney, “Composition and Properties of Aquafaba: Water Recovered from Commercially Canned Chickpeas”, in Journal of Visualized Experiments‎^[2], volume 132, →DOI, →PMID:

     Aquafaba was recovered from 10 commercial canned chickpea products and correlations among aquafaba composition, density, viscosity and foaming properties were investigated. Proton NMR was used to characterize aquafaba composition before and after ultrafiltration through membranes with different molecular weight cut offs (MWCOs of 3, 10, or 50 kDa).

6. (uncountable, psychology) A tendency to prolong interpersonal encounters.

Derived terms

• bulk viscosity
• elastoviscosity
• gyroviscosity
• hyperviscosity
• microviscosity
• shear viscosity
• viscosity printing

Translations

state of being viscous

• Afrikaans: viskositeit (af)
• Arabic: لُزُوجَة (ar) f (luzūja)
• Bulgarian: вискозност f (viskoznost)
• Catalan: viscositat (ca) f
• Chinese:

  Mandarin: 粘性 (zh) (niánxìng), 粘度 (zh) (niándù)

• Dutch: viscositeit (nl)
• Finnish: viskoosisuus (fi), sitkaus
• French: viscosité (fr) f
• Galician: viscosidade (gl) f
• Georgian: სიბლანტე (siblanṭe), მწებვარობა (mc̣ebvaroba)
• German: Zähflüssigkeit (de) f, Viskosität (de) f
• Greek: ιξώδες (el) n (ixódes)
• Hindi: श्यानता (hi) f (śyāntā)
• Ido: viskozeso (io)
• Irish: bealaitheacht f, glóthaí f, righneacht f, slaodacht f
• Italian: viscosità (it) f
• Japanese: 粘性 (ja) (ねんせい, nensei), 粘度 (ja) (ねんど, nendo)
• Malay: kelikatan
• Persian: لزوجت (fa) (lozujat)
• Polish: lepkość (pl) f
• Portuguese: viscosidade f
• Russian: вя́зкость (ru) f (vjázkostʹ)
• Slovene: viskóznost f
• Spanish: viscosidad f
• Thai: ความหนืด (th) (kwaam-nʉ̀ʉt)
• Ukrainian: в'я́зкість f (vʺjázkistʹ)
• Vietnamese: (tính) nhớt, (tính) sền sệt, (tính) lầy nhầy

physics: quantity expressing the magnitude of internal friction in a fluid

• Afrikaans: viskositeit (af)
• Arabic: لُزُوجَة (ar) f (luzūja)
• Bengali: সান্দ্রতা (śandrota)
• Bulgarian: вискозитет m (viskozitet)
• Chinese:

  Mandarin: 粘性 (zh) (niánxìng)

• Dutch: viscositeit (nl)
• Finnish: viskositeetti (fi), sitkaus
• French: viscosité (fr) f
• Georgian: სიბლანტე (siblanṭe), მწებვარობა (mc̣ebvaroba)
• German: Viskosität (de) f
• Greek: ιξώδες (el) n (ixódes)
• Hindi: श्यानता (hi) f (śyāntā)
• Hungarian: viszkozitás (hu)
• Irish: righneas m, slaodacht f
• Japanese: 粘度 (ja) (ねんど, nendo)
• Malay: kelikatan
• Norwegian:

  Bokmål: viskositet m

• Polish: lepkość (pl) f, wiskoza (pl) f
• Portuguese: viscosidade f
• Russian: вя́зкость (ru) f (vjázkostʹ)
• Slovene: viskóznost f
• Swedish: viskositet (sv) c
• Tagalog: lapuyot
• Telugu: స్నిగ్ధత (snigdhata)
• Thai: ความหนืด (th) (kwaam-nʉ̀ʉt)
• Ukrainian: в'я́зкість f (vʺjázkistʹ)
• Vietnamese: độ nhớt (vi)