valency
noun /ˈveɪlənsi/
/ˈveɪlənsi/
[countable, uncountable] (plural valencies)
(also valence
/ˈveɪləns/
/ˈveɪləns/
especially in North American English)- (chemistry
) a measurement of the power of an atom to combine with others, by the number of atoms of hydrogen it can combine with or displace化学 价;化合价;原子价 - Carbon has a valency of 4.
碳的化合价是 4 价。
Wordfinder- antiparticle
- atom
- electron
- ion
- neutron
- nucleus
- particle
- positron
- proton
- valency
Wordfinder- acid
- catalyst
- chemistry
- compound
- formula
- molecule
- pH
- react
- solution
- valency
- Carbon has a valency of 4.
- (linguistics
) the number of grammatical elements that a word, especially a verb, combines with in a sentence语言学 组配数限,配价(一个词,尤指动词,在句子中结合的语法成分的数目)
词源early 17th cent.: from late Latin valentia ‘power, competence’, from valere ‘be well or strong’.