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Definition of Peptide bond
1. Noun. The primary linkage of all protein structures; the chemical bond between the carboxyl groups and amino groups that unites a peptide.
Definition of Peptide bond
1. Noun. (chemistry) An amide bond formed between the amino and carboxyl functional groups of separate amino acids ¹
2. Noun. (biochemistry) The primary linkage of amino acids in proteins ¹
¹ Source: wiktionary.com
Medical Definition of Peptide bond
1. The amide linkage between the carboxyl group of one amino acid and the amino group of another. The linkage does not allow free rotation and can occur in cis or trans configuration, the latter the most common in natural peptides, except for links to the amino group of proline, which are always cis. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)