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surface tension
[ sur-fis ten-shuhn ]
noun
, Physics.
- the elasticlike force existing in the surface of a body, especially a liquid, tending to minimize the area of the surface, caused by asymmetries in the intermolecular forces between surface molecules.
surface tension
noun
- a property of liquids caused by intermolecular forces near the surface leading to the apparent presence of a surface film and to capillarity, etc
- a measure of this property expressed as the force acting normal to one side of a line of unit length on the surface: measured in newtons per metre Tγσ
surface tension
/ sûr′fəs /
- A property of liquids such that their surfaces behave like a thin, elastic film. Surface tension is an effect of intermolecular attraction, in which molecules at or near the surface undergo a net attraction to the rest of the fluid, while molecules not near the surface are attracted to other molecules equally in all directions and undergo no net attraction. Because of surface tension, the surface of a liquid can support light objects (such as water beetles on the surface of a pond). Surface tension is responsible for the spherical shape of drops of liquid; spheres minimize the surface area of the drop and thus minimize surface tension.
- See also capillary action
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Word History and Origins
Origin of surface tension1
First recorded in 1875–80
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Example Sentences
The fact that her show is called “Surface Tension” makes clear that she understands and intends this reference.
From The Daily Beast
It depends upon the fact that bile acids lower surface tension.
From Project Gutenberg
His feet rested on nothing—and yet there was some sort of tension under him—like the surface tension of water.
From Project Gutenberg
On the moon, the surface tension of the ink was exactly the same as on earth, but the gravity was five-sixths less.
From Project Gutenberg
The modern physicist explains the phenomenon as due to surface-tension of the fluid.
From Project Gutenberg
This may be a tropism (stereotropism) or it may be a mere surface tension phenomenon.
From Project Gutenberg
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