From Longman Dictionary of Contemporary Englishnucleic acidnu‧cle‧ic ac‧id /njuːˌkliːɪk ˈæsəd, -ˌkleɪ- $ nuː-/ noun [countable, uncountable] HBMone of the two acids, DNA and RNA, that exist in the cells of all living things
Examples from the Corpus
nucleic acid• The test only confirms that the organism's nucleic acid is present.Origin nucleic acid (1800-1900) nucleus 