From German - English Ding/FreeDict dictionary ver. 1.9-fd1:
Ribonukleinsäure /rˈiːboːnˌʊklaɪnzˌɔørə/ (RNS /ˌɛrˌɛnˈɛs/) <fem, n, sg>
[biochem.] ribonucleic acid <n>RNA, /ˌɛrˌɛnˈɑː/
"Boten-Ribonukleinsäure" - messenger ribonucleic acid, messenger-RNA
"Messenger-Ribonukleinsäure" - messenger ribonucleic acid, messenger-RNA
see: Boten-RNS, Messenger-RNS, Ribosomen-RNS, r-RNS, ribosomale RNS