Noun
- 1. valency, chemical phenomenon
- usage: the phenomenon of forming chemical bonds
- 2. valence, valency, power, powerfulness
- usage: (biology) a relative capacity to unite or react or interact as with antigens or a biological substrate
- 3. valence, valency, power, powerfulness
- usage: (chemistry) a property of atoms or radicals; their combining power given in terms of the number of hydrogen atoms (or the equivalent)
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