from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A polymeric constituent of all living cells and many viruses, consisting of a long, usually single-stranded chain of alternating phosphate and ribose units with the bases adenine, guanine, cytosine, and uracil bonded to the ribose. The structure and base sequence of RNA are determinants of protein synthesis and the transmission of genetic information. Also called ribonucleic acid.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- ribonucleic acid
from The Century Dictionary and Cyclopedia
- An abbreviation of Royal Naval Artillery Volunteers.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. (biochemistry) a long linear polymer of nucleotides found in the nucleus but mainly in the cytoplasm of a cell where it is associated with microsomes; it transmits genetic information from DNA to the cytoplasm and controls certain chemical processes in the cell
r(ibo)n(ucleic) a(cid).(American Heritage® Dictionary of the English Language, Fourth Edition)