Ribonucleic
Ribose-Nucleac
It is messenger RNA
If by "RN" you mean registered nurse, Yes.
RNA means ribonucleic acid. It is definitely easier to pronounce it as RNA, though.
RN in military spec terms mean World War 2
To be rn trained is to go through nursing school or a nursing training course to become a certified nurse. An RN is a certified nurse. There are places all over the US that have RN training and schools to go to.
RN could mean many things, but is most commonly known as a Registered Nurse, or Radon, an element.
Registered nurseRegistered Nurse
If you mean messenger RNA (mRNA), then yes, a triplet of mRNA nucleotides is known as a mRNA codon. However, if you mean transfer RNA (tRNA), then the answer is no. A triplet of tRNA nucleotides is known as an anticodon.
If your talking on twitter it means "Trend Right Now"
X= Ten in roman numerals
RN = Rosewood neck (I'm assuming RW also equates to Rosewood) The alternative is MN which signifies a Maple Neck