Referring to the nucleus of something.

plural of nucleic acid

(biochemistry, genetics) Any acidic, chainlike biological macromolecule consisting of multiple repeat units of phosphoric acid, sugar and purine and pyrimidine bases; they are involved in the preservation, replication and expression of hereditary information in every living cell

Any nucleic acid composed of bases other than adenine, guanine, thymine, uracil and cytosine and/or sugars other than ribose and deoxyribose, that could form the basis of extraterrestrial carbon-based life.

(biochemistry) An analog of RNA in which the sugar component is threose—considered to be a primordial precursor to RNA

(biochemistry) A synthetic organic polymer similar to DNA or RNA; the sugar backbone of nucleic acids is replaced by N-(2-aminoethyl)-glycine linked through peptide bonds - considered a possible precursor to RNA

(biochemistry, genetics) a synthetic form of RNA, in which the ribose is modified to be locked into a specific conformation by adding extra chemical bonding.

(biochemistry) A synthetic nucleic acid; an analogue of DNA in which the sugar backbone is glycerol or a related glycol

(genetics) Archaic form of deoxyribonucleic acid.

(genetics, archaic) ribonucleic acid