RNA interference(redirected from RNA interference machinery)
Also found in: Dictionary, Medical.
RNA interference[¦är¦en¦ā ‚in·tər′fir·əns]
(cell and molecular biology)
The process by which foreign, double-stranded RNA is recognized and degraded by specialized protein complexes within many eukaryotic cells; believed to be an evolutionarily conserved defense mechanism against RNA viruses and transposable elements. Abbreviated RNAi.