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viscosity    音标拼音: [vɪsk'ɑsəti]
n. 粘质,粘性

粘质,粘性

viscosity
粘性

viscosity
n 1: resistance of a liquid to shear forces (and hence to flow)
[synonym: {viscosity}, {viscousness}]

Viscosity \Vis*cos"i*ty\, n. [Cf. F. viscosit['e], LL.
viscositas.]
1. The quality or state of being viscous.
[1913 Webster]

2. (Physics) A property possessed by a viscous fluid, being a
resistance to the forces causing a fluid to flow, caused
by interactions between the molecules of the fluid and
between the fluid and the walls of the conduit through
which it moves; also, a measure of such a property.
[1913 Webster PJC]

71 Moby Thesaurus words for "viscosity":
adhesiveness, bullheadedness, clabbering, clamminess, closeness,
clotting, coagulation, cohesiveness, colloidality, compactness,
congestedness, congestion, consistence, consistency, crowdedness,
curdling, denseness, density, doughiness, firmness, gelatinity,
gelatinousness, gluelikeness, gluiness, glutinosity, glutinousness,
gumlikeness, gumminess, hardness, heaviness, impenetrability,
impermeability, imporosity, incompressibility, incrassation,
inspissation, jammedness, jellification, jellylikeness, lentor,
mucilaginousness, obstinacy, pastiness, persistence, persistency,
relative density, retention, ropiness, slabbiness, sliminess,
snugness, solidity, solidness, specific gravity, spissitude,
stick-to-itiveness, stickiness, stodginess, stringiness,
stubbornness, syrupiness, tackiness, tenaciousness, tenacity,
thickening, thickness, tightness, toughness, treacliness,
viscidity, viscousness


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  • Viscosity - Wikipedia
    [1] For liquids, it corresponds to the informal concept of thickness; for example, syrup has a higher viscosity than water [3] Viscosity is defined scientifically as a force multiplied by a time divided by an area Thus its SI units are newton-seconds per metre squared, or pascal-seconds [2]
  • Viscosity | Definition, Facts, Formula, Units, Examples | Britannica
    Viscosity is the resistance of a fluid (liquid or gas) to a change in shape or movement of neighbouring portions relative to one another Viscosity denotes opposition to flow
  • Viscosity: Definition, Examples, and Formula - Science Facts
    Viscosity is a physical quantity that describes a fluid’s resistance to flow It is a property that resists the relative displacement of the different layers of the fluid
  • Viscosity – The Physics Hypertextbook
    Informally, viscosity is the quantity that describes a fluid's resistance to flow Formally, viscosity is the ratio of shearing stress to velocity gradient
  • Viscosity Definition and Examples - Science Notes and Projects
    By definition, viscosity is a fluid’s resistance to flow or deformation A fluid with a high viscosity, such as honey, flows as a slower rate than a less viscous fluid, such as water
  • What is Viscosity? - GeeksforGeeks
    Viscosity is defined as the measure of the resistance offered by a liquid to its flow Liquids with low viscosity (like water) flow easily, whereas liquids with high viscosity (like honey) flow slowly and with greater difficulty
  • Viscosity: Definition, Formula, SI Unit Examples for Physics 2025
    The internal friction that arises due to this difference in velocity is termed viscosity Fluids with high viscosity (like honey or oil) flow more slowly, while fluids with low viscosity (like water or air) flow more readily Viscosity is sometimes referred to as the "thickness" of a fluid
  • Viscosity: Why Liquids Resist Flow and the Role of Intermolecular Forces
    Learn how viscosity measures a liquid’s resistance to flow, why “thick” liquids like syrup move slowly, and how intermolecular forces and molecular structure impact flow rate
  • Viscosity: Definition, Unit Formula - Sciencing
    Viscosity is a measure of a fluid's resistance to flow It can also be thought of as a measure of a fluid's thickness or its resistance to objects passing through it The greater the resistance to flow, the higher the viscosity, so in the previous example, the syrup has a higher viscosity than water
  • DEFINITION OF VISCOSITY - Princeton University
    That is because honey's viscosity is large compared to other liquids' viscosities If I fill the same cup with water, for example, the cup will drain much more quickly Viscosity is a measure of a fluid's resistance to flow It describes the internal friction of a moving fluid





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