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polar molecule

American  

noun

  1. a molecule in which the centroid of the positive charges is different from the centroid of the negative charges.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The fact that hydrogen cyanide, a strongly polar molecule, can form crystals together with nonpolar substances like methane and ethane is remarkable, since these types of molecules usually stay separate, much like oil and water.

From Science Daily • Oct. 17, 2025

Because caffeine is a somewhat polar molecule, it dissolves well in water, a polar liquid.

From Textbooks • Feb. 14, 2019

For these molecules, the directions of the equal bond moments are such that they sum to give a nonzero dipole moment and a polar molecule.

From Textbooks • Feb. 14, 2019

Consider a polar molecule such as hydrogen chloride, HCl.

From Textbooks • Feb. 14, 2019

There is an inherent separation of charge, and so water is a polar molecule.

From Textbooks • Aug. 12, 2015