viscosity
/vɪˈskɒsəti/ (bre, ipa) · [vɪskˈɑsəti] /vɪˈskɑːsəti/ (ame, ipa) · [vɪskˈɑsəti] /vi-ˈskä-sə-tē How to pronounce viscosity (audio)/ (ame, mw)
viscosity — 名詞
- viscositysingular
- viscositiesplural
1. how thick and sticky a liquid is, which affects how slowly or easily it pours or
黏性
液體濃稠而難以流動的性質
how thick and sticky a liquid is, which affects how slowly or easily it pours or moves
The viscosity of honey makes it much harder to pour than water.
蜂蜜的黏性很高，比水難倒出來很多。
the viscosity of [liquid] + hard to pour
Lien saw the paint had higher viscosity than normal, so she added a little water.
Lien 發現這批油漆的黏性比平常高，所以她加了一點水。
higher viscosity + add water to reduce it
Warm maple syrup has a lower viscosity than cold syrup and pours much faster.
溫熱的楓糖漿黏性比冷的低，倒出來快很多。
Rodrigo checked the viscosity of the engine oil to see if it was still usable.
Rodrigo 檢查機油的黏性，看看還能不能繼續使用。
The sauce's high viscosity kept it from running off the plate.
醬汁的黏性很高，所以不會從盤子邊緣流下去。
- thickness
everyday word for the same idea; less precise than 'viscosity'
- stickiness
focuses on the adhesive quality, not resistance to flow
文法句型
the viscosity of [liquid]
用法筆記
Uncountable noun — you cannot say 'a viscosity' or 'viscosities' when referring to the general property of being thick.
常見錯誤
2. a scientific measurement of how strongly a fluid pushes back against being stirr
黏度
流體對流動阻力程度的量測
a scientific measurement of how strongly a fluid pushes back against being stirred, poured, or forced through a narrow space
Engineers measure the viscosity of crude oil before pumping it through pipelines.
工程師在將原油打入管線之前，會先測量它的黏度。
measure the viscosity of [liquid] for engineering decisions
The lab report showed that the liquid's viscosity rose sharply as the temperature dropped.
實驗報告顯示，該液體的黏度隨著溫度下降而明顯升高。
viscosity rises / falls with temperature
Valentina told her class that blood viscosity affects how well the heart pumps blood.
Valentina 告訴全班同學，血液黏度會影響心臟輸送血液的效率。
Motor oils with different viscosity ratings work best in hot or cold weather.
不同黏度等級的機油在炎熱或寒冷的天氣下表現不同。
The viscosity of lava determines whether it flows slowly like thick mud or spreads fast.
岩漿的黏度決定了它是像濃泥一樣慢慢流動，還是快速擴散。
- consistency
broader term that includes viscosity plus other texture qualities
文法句型
the viscosity of [fluid]
measure viscosity using [apparatus]
用法筆記
In technical contexts (physics, engineering, food science) this sense is used as a measurable property with units (e.g. pascal-seconds, poise). In everyday conversation sense 1 is more common.