amide bond

This term is a specialized technical expression used primarily in biochemistry and organic chemistry. It describes the specific linkage that creates the backbone of proteins, often referred to as a peptide bond when occurring between two amino acids. The term carries a neutral, scientific connotation and is used in formal academic or laboratory contexts.

Because this is a compound noun referring to a specific chemical structure, it follows standard English countability rules for physical entities. It is used in the singular when discussing the nature of the bond and in the plural when referring to the multiple linkages within a polymer or protein chain.