Definition of NITROGENOUS BASE in the Definitions.net dictionary. Critically, these bases are linked to each other with hydrogen bonds, forming the "rungs" of a structure that, if not wound into a helix, would resemble a ladder; in this model, the sugars and phosphates form the sides. The nitrogenous bases are paired in specific combinations: adenine with thymine and guanine with cytosine. [1] nitrogen base synonyms, nitrogen base pronunciation, nitrogen base translation, English dictionary definition of nitrogen base. 6.1 shows their chemical structure and the numbering of the elements in the molecule. The term is used especially of organic ring compounds, such as adenine, guanine, cytosine, and thymine, which are constituents of nucleic acids. Fig. In DNA nitrogenous bases are either pyrimidines or purines. nitrogenous base A basic compound containing nitrogen. A nitrogenous base is simply a molecule that contains nitrogen and has the chemical properties of a base. Meaning of NITROGENOUS BASE. nitrogenous: ( nī-troj'ĕ-nŭs ), Relating to or containing nitrogen. The nitrogenous bases that form DNA and RNA are classified as pyrimidine and purine bases. The nitrogenous bases, meanwhile, occupy the interior portion of the molecule. Define nitrogen base. Information and translations of NITROGENOUS BASE in the most comprehensive dictionary definitions resource on the web. double helix The SOP model of change as a new way of looking at causality Extending from each sugar molecule toward the center of the ladder is a nitrogenous base that is weakly bonded to a nitrogenous base extending from the opposing strand. Let’s break it down a bit to understand what the definition really means. Source for information on nitrogenous base: A Dictionary of Biology dictionary. A nitrogenous (nitrogen-containing) base is a nitrogen-containing molecule having the chemical properties of a base. Nitrogenous bases fall into the class of chemical compounds known as organic compounds or those which contain carbon. Purines are derived from pyrimidines by addition of an imidazole group. or nitrogenous base n. A basic compound that contains nitrogen, such as a purine or pyrimidine. A nitrogenous base, such as cytosine, thymine, or uracil, with a characteristic single-ring structure; one of the components of nucleic acids. Nitrogenous base carbon ring structure found in DNA or RNA that contains one or more atoms of nitrogen; includes adenine, guanine, cytosine, thymine, and uracil. What does NITROGENOUS BASE mean? It is an organic compound that owes its property as a base to the lone pair of electrons of a nitrogen atom.In biological sciences, nitrogenous bases are typically classified as the derivatives of two parent compounds, pyrimidine and purine. 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