Tears: n. pl. Tears are the transparent traces left on the wall of a glass after swirling the wine. The tears characterize the viscosity, that is to say the presence in this wine of viscous constituents such as alcohol, glycerol or sugars. They can also be attributed to the alcohol content of the wine, which tends to modify the surface tension of the liquid by forming drops, or to the roughness of the glass, or even to slight traces of detergents left on...
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