valence

va·lence

noun \ˈvā-lən(t)s\

Definition of VALENCE

1

: the degree of combining power of an element as shown by the number of atomic weights of a monovalent element (as hydrogen) with which the atomic weight of the element will combine or for which it can be substituted or with which it can be compared

2

a : relative capacity to unite, react, or interact (as with antigens or a biological substrate) b : the degree of attractiveness an individual, activity, or thing possesses as a behavioral goal <the relative potency of the valences of success and failure — Leon Festinger>

Origin of VALENCE

Late Latin valentia power, capacity, from Latin valent-, valens, present participle of valēre to be strong — more at wield

First Known Use: 1884

Other Chemical Engineering Terms

alkali, cation, decant, hygroscopic, isotope, oxidize, slurry, solute, viscous