An organic nitrogenous base (see formula), sparingly soluble in water, that gives rise to a group of biologically important derivatives, notably uracil, thymine, and cytosine, which occur in nucleotides and nucleic acids (DNA and RNA).
Pyrimidine
An organic nitrogenous base, sparingly soluble in water, that gives rise to a group of biologically important derivatives, notably uracil, thymine, and cytosine, which occur in nucleotides and nucleic acids (DNA and RNA).
Pyrimidine
- refracting telescope
- refraction
- refraction, atmospheric
- refraction survey
- refractive index
- refractivity
- refractometer
- refractor
- refractory
- refractory mineral
- refractory period
- refresh
- refresh frequency
- refrigerant
- refrigeration
- refuel
- refugee
- refugia
- Refugian
- refugium
- refusal to supply
- refutation
- refute
- reg
- regelation