| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024va•lence (vā′ləns),USA pronunciation n. - Chemistry
- the quality that determines the number of atoms or groups with which any single atom or group will unite chemically.
- the relative combining capacity of an atom or group compared with that of the standard hydrogen atom. The chloride ion, Cl–, with a valence of one, has the capacity to unite with one atom of hydrogen or its equivalent, as in HCl or NaCl.
- Immunologythe number of determinants per molecule of antigen.
- the capacity of one person or thing to react with or affect another in some special way, as by attraction or the facilitation of a function or activity.
Also, valency. - Latin valentia strength, worth, equivalent. to valent- (stem of valēns), present participle to be strong + -ia noun, nominal suffix; see -ence
- 1865–70
- Place Namesa city in and the capital of Drôme, in SE France. 70,307.
Collins Concise English Dictionary © HarperCollins Publishers:: valence /ˈveɪləns/ n - another name (esp US and Canadian) for valency
- the phenomenon of forming chemical bonds
Collins Concise English Dictionary © HarperCollins Publishers:: Valence /French: valɑ̃s/ n - a town in SE France, on the River Rhône. Pop: 64 260 (1999)
|