I heard my professor use this term.He said that it is a RNA that has the sense of synthesising the protein. But there's no authentic online source to verify it, except this one (biology-pages.info) which says:
Messenger RNA (mRNA) is single-stranded. Its sequence of nucleotides is called "sense" because it results in a gene product (protein). Normally, its unpaired nucleotides are "read" by transfer RNA anticodons as the ribosome proceeds to translate the message.
So my question , is mRNA or the pre-mRNA called the sense RNA ?