negatively regulates negative regulation of translational elongation biological regulation mitochondrial translational elongation negative regulation of mitochondrial translation regulation of mitochondrial translational elongation negative regulation of mitochondrial translational elongation down-regulation of mitochondrial translational elongation inhibition of mitochondrial translation elongation Any process that stops, prevents or reduces the frequency, rate or extent of mitochondrial translational elongation. biological_process down-regulation of mitochondrial translation elongation down regulation of mitochondrial translation elongation GO:1905083 hjd downregulation of mitochondrial translational elongation 2016-03-25T17:37:13Z down regulation of mitochondrial translational elongation inhibition of mitochondrial translational elongation downregulation of mitochondrial translation elongation negative regulation of mitochondrial translation elongation