Source:http://linkedlifedata.com/resource/umls/id/C1257756
GO: The chemical reactions and pathways resulting in the breakdown of RNA, ribonucleic acid, one of the two main type of nucleic acid, consisting of a long, unbranched macromolecule formed from ribonucleotides joined in 3',5'-phosphodiester linkage. [ISBN:0198506732],NCI: RNA degradation is a regulated cellular biochemical process that involves depolymerization of RNA macromolecules, which affects the RNA content of cells and regulates gene expression.