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Related to divalent: monovalent, divalent carbon, divalent metal


1. Chemistry Having a valence of 2.
2. Immunology
a. Having two sites of attachment. Used of an antibody or antigen.
b. Containing antigens from two strains of a microorganism or virus. Used of a vaccine or serum.


(daɪˈveɪlənt; ˈdaɪˌveɪ-)
1. (Chemistry) having a valency of two
2. (Chemistry) having two valencies
Also: bivalent
diˈvalency n


(daɪˈveɪ lənt)

having a valence of two.
di•va′lence, n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.divalent - having a valence of two or having two valences
chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
References in periodicals archive ?
The possible explanations for these results included metal ions that may activate electrophile and nucleophile binding, and release electrons to modulate PO activity (Stryer 1995), or divalent cations that may change the secondary structure of certain peptides of PO to influence PO activity (Feng et al.
We observed no change in the transcriptional expression of megalin and ClC5 in LLC-PK1 cells treated with other divalent metals ([Zn.
found a nucleating agent that does not cause warping: a divalent metal alcoholate of a polyhydroxy alkane compound with two to twenty carbon atoms.
The process has the following steps: mixing a polymer compound that has, in a side chain, a group represented by the formula -(OX)n-E2-R, wherein X represents a C1 to C6 linear or branched divalent saturated hydrocarbon group, n is a number of 5 to 300, Xs whose number is n may be the same as or different from one another, E2 represents an ether linkage (--O--) or an ester linkage (--OCO--or--COO--), and R represents a C4 to C30 linear or branched hydrocarbon group which may be substituted with a hydroxy group; a water-soluble polyol; a nonionic surfactant; a hydrophobic compound and water; then diluting the resulting mixture with water, so that the average emulsion particle diameter of the emulsion in the oil-in-water emulsion is 0.
Z is selected from hydrogen or alkyls and L is selected from divalent alkylenes and L may be interrupted by one or more divalent aromatic groups or heteroatomic groups.
Cytosine Deaminase: The roles of Divalent Metal ions in Catalysis.
The environment needs to be maintained at physiological pH (usually achieved by buffering agents) and needs to include a supply of divalent cations--most frequently Mg+-1--which act in making the dNTPs chemically reactive.
NF is considered as a membrane "softening" process or a divalent or trivalent ion-removal technique that is a subset of RO.
We hypothesised that sorption of WEOC will differ among clay subsoils and will be positively correlated with clay content, specific surface area (SSA), and concentrations of exchangeable divalent cations and Fe oxides, but negatively correlated with proportion of monovalent cations (SAR and CROSS).
As it is well known [12], the carboxylic and naphthenic acids are important surface active substances (SASt) and petroleum fluid components, and for solvation of the oil and gas hydrocarbons they form insoluble salts with the divalent calcium ([Ca.
The affinity of SA toward different divalent metal ions follows the order: [Pb.