Possibly influenced by Danish grim (âsoot, grimeâ), Old Dutch grijmsel, Middle Dutch grime, Middle Low German greme (âdirtâ). Dirt, grease, soot, etc. that is ingrained and difficult to remove.
messenger RNA. a molecule of RNA that is synthesized in the nucleus from a DNA template and then enters the cytoplasm, where its genetic code specifies the amino acid sequence for protein synthesis.
Definition of MESSENGER RNA. : an RNA produced by transcription that carries the code for a particular protein from the nuclear DNA to a ribosome in the cytoplasm and acts as a template for the formation of that protein â compare transfer rna.