Capillary-action meaning

The interaction between contacting surfaces of a liquid and a solid that distorts the liquid surface from a planar shape and causes the liquid to rise or fall in a narrow tube.
noun
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The movement of a liquid along the surface of a solid caused by the attraction of molecules of the liquid to the molecules of the solid.
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The drawing of a liquid (often against gravity) into or up narrow interstices due to surface tension.
noun
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