New chemical species AB, each molecular entity of which is formed by direct combination of two separate molecular entities A and B in such a way that there is change in connectivity, but no loss, of a [..]

An action. adductor

(n) a compound formed by an addition reaction(v) draw a limb towards the body

An adduct formed by electron-pair donation from a pi orbital into a sigma orbital, or from a sigma orbital into a pi orbital, or from a pi orbital into a pi orbital. For example: Such an adduct has commonly been known as a "pi complex", but, as the bonding is not necessarily weak, it is better to avoid the term complex, in accordance with [..]

The product formed by the attachment of an electrophilic or nucleophilic entering group or of a radical to a ring carbon of an aromatic species so that a new sigma bond is formed and the original conjugation is disrupted. (This has generally been called a "-complex", but adduct is more appropriate than complex according to the definitions [..]

A new chemical species AB, each molecular entity of which is formed by direct combination of two separate molecular entities A and B in such a way that there is change in connectivity, but no loss, of atoms within the moieties A and B. Stoichiometries other than 1:1 are also possible, e.g. a bis-adduct (2:1). An "intramolecular adduct" ca [..]

The covalent complex formed when a chemical binds a biomolecule, such as DNA or a protein.

<chemistry, molecular biology> A compound produced by the mixing of two or more chemicals. Acomplex that forms when a chemical binds to a biological molecule, such as DNA or a protein. (06 May 1997)