Yes, transcription does describe production of mRNA from a gene BUT that’s not the most complete definition.
mRNAs are the protein-coding types of RNA.
Transcription actually refers to process through which any type of RNA from a region of DNA. Yes, it is only a small difference but it is important, as the processes regulating transcription are relevant to these other RNAs too (and can go wrong in disease/cancer).
LaNts and Laminins 