deoxyribonucleotide \deoxyribonucleotide\ n. an organic molecule consisting of a hereocyclic base attached to the 1-carbon of a deoxyribose ring, with a phosphate group esterified at the 5 position of the deoxyribose. Deoxyribonuceotides are the monomer units which make up {deoxyribonucleic acid}, the molecule carrying the hereditary information in most organisms. The most common forms of deoxyribonuceotide are {thymidine-5'-phosphate} (abbreviated {TMP}), {deoxyadenosine-5'-phosphate} (abbreviated {dAMP}), {deoxyguanosine-5'-phosphate} (abbreviated {dGMP}), and {deoxycytidine-5'-phosphate} (abbreviated {dCMP}). [PJC]