Polyubiquitylated is a complex word that means the addition of multiple ubiquitin molecules to a protein. Synonyms for the term include polyubiquitinated, ubiquitinated multiple times, and ubiquitin-conjugated. These terms describe the process by which a protein is marked for degradation by the cell's machinery. The ubiquitin molecule serves as a sort of molecular "tag," signaling that the protein should be broken down and recycled. Understanding the various synonyms for polyubiquitylated is important for scientists and researchers studying the intricacies of cellular processes. These terms can help convey meaning more clearly and accurately, leading to a better understanding of the science behind protein degradation.