<cell biology> Functional unit of protein synthesis consisting of several ribosomes attached along the length of a single molecule of mRNA. ... Origin: Gr. Soma = body ... (18 Nov 1997) ... Found on http://www.encyclo.co.uk/local/20973
(pol″e-ri´bo-sōm) a cluster of ribosomes connected with messenger RNA; they play a role in peptide synthesis. Schematic diagram of polyribosomes synthesizing polypeptide chains from a messenger RNA (mRNA) template. Found on http://www.encyclo.co.uk/local/21001