Definition of van der Waals forces in English:

van der Waals forces

plural nounˈvɑːlzˌvan də ˈwɑːlz-ˌvälz

Chemistry

Weak, short-range electrostatic attractive forces between uncharged molecules, arising from the interaction of permanent or transient electric dipole moments.
〔化〕范德瓦耳斯力
Example sentencesExamples
- The van der Waals force is long range, attractive, and relatively weak.
- His team discovered that van der Waals force helps the gecko's feet stick.
- As the molecules are pushed closer together, the effects of small forces, such as van der Waals forces, become apparent.
- The molecules in paraffin wax, on the other hand, are only held together by weak van der Waals forces.
- The basic idea of the experiment is to suddenly neutralize the layer, so that the attractive van der Waals force will press the bead against the slide.

Origin

Late 19th century: named after Johannes van der Waals (1837–1923), Dutch physicist.

Definition of van der Waals forces in US English:

van der Waals forces

plural noun-ˌvälz

Chemistry

Weak, short-range electrostatic attractive forces between uncharged molecules, arising from the interaction of permanent or transient electric dipole moments.
〔化〕范德瓦耳斯力
Example sentencesExamples
- As the molecules are pushed closer together, the effects of small forces, such as van der Waals forces, become apparent.
- The basic idea of the experiment is to suddenly neutralize the layer, so that the attractive van der Waals force will press the bead against the slide.
- The van der Waals force is long range, attractive, and relatively weak.
- The molecules in paraffin wax, on the other hand, are only held together by weak van der Waals forces.
- His team discovered that van der Waals force helps the gecko's feet stick.

Origin

Late 19th century: named after Johannes van der Waals (1837–1923), Dutch physicist.

词汇	van der Waals forces
释义	Definition of van der Waals forces in English: van der Waals forces plural nounˈvɑːlzˌvan də ˈwɑːlz-ˌvälz Chemistry Weak, short-range electrostatic attractive forces between uncharged molecules, arising from the interaction of permanent or transient electric dipole moments. 〔化〕范德瓦耳斯力 Example sentencesExamples The van der Waals force is long range, attractive, and relatively weak. His team discovered that van der Waals force helps the gecko's feet stick. As the molecules are pushed closer together, the effects of small forces, such as van der Waals forces, become apparent. The molecules in paraffin wax, on the other hand, are only held together by weak van der Waals forces. The basic idea of the experiment is to suddenly neutralize the layer, so that the attractive van der Waals force will press the bead against the slide. Origin Late 19th century: named after Johannes van der Waals (1837–1923), Dutch physicist. Definition of van der Waals forces in US English: van der Waals forces plural noun-ˌvälz Chemistry Weak, short-range electrostatic attractive forces between uncharged molecules, arising from the interaction of permanent or transient electric dipole moments. 〔化〕范德瓦耳斯力 Example sentencesExamples As the molecules are pushed closer together, the effects of small forces, such as van der Waals forces, become apparent. The basic idea of the experiment is to suddenly neutralize the layer, so that the attractive van der Waals force will press the bead against the slide. The van der Waals force is long range, attractive, and relatively weak. The molecules in paraffin wax, on the other hand, are only held together by weak van der Waals forces. His team discovered that van der Waals force helps the gecko's feet stick. Origin Late 19th century: named after Johannes van der Waals (1837–1923), Dutch physicist.
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