1. Relating to or a reference to an electrovalence or to an electrovalent bond or an ionic bond.
2. The number of charges an atom acquires in a chemical reaction by a gain or a loss of electrons and the bonding resulting from such a transfer of electrons.

1. A type of chemical bond in which atoms of different elements join by transferring one or more electrons from one to the other to form an ionizing or polar compound.BR> 2. A chemical bond characteristic of salts and formed by the complete transfer of one or more electrons from one kind of atom to another atom.
3. A type of chemical bonding in which one or more electrons are transferred completely from one atom to another, and so converting the neutral atoms into electrically charged ions.

These ions are approximately spherical and attract one another because of their opposite charge.