Definition for RNA polymerase
From Biology Forums Dictionary
1) The enzyme that synthesizes strands of RNA during gene transcription.
RNA polymerase is an enzyme that is responsible for making RNA from a DNA template.
2) RNA polymerase, also known as DNA-dependent RNA polymerase, is an enzyme that produces RNA. In cells, RNAP is necessary for constructing RNA chains using DNA genes as templates, a process called transcription.