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A network solid or covalent network solid is a chemical compound (or element) in which the atoms are bonded by covalent bonds in a continuous network extending throughout the material.
covalent bond. n. 1. (Chemistry) a type of chemical bond involving the sharing of electrons between atoms in a molecule, esp the sharing of a pair of electrons by two adjacent atoms.oun. 1. covalent bond-a chemical bond that involves sharing a pair of electrons between atoms in a molecule. bond, chemical bond-an electrical force linking atoms. double bond-a covalent bond in which two pairs of electrons are shared between two atoms.