Definition of pyrimidine in English:

pyrimidine

Line breaks: pyr¦imi|dine
Pronunciation: /pɪˈrɪmɪdiːn
 
/

noun

[mass noun] Chemistry
1A colourless crystalline compound with basic properties.
  • A heteroaromatic compound; chemical formula: C4H4N2
More example sentences
  • Second, there is no branch in the pyrimidine synthesis pathway.
  • The URA3 gene is essential for yeast pyrimidine biosynthesis.
  • Our analyses also suggest that the utilization of products of de novo pyrimidine biosynthesis may differ between different cell types.
1.1 (also pyrimidine base) [count noun] A substituted derivative of pyrimidine, especially the bases thymine and cytosine present in DNA.
More example sentences
  • Both of these products involve dimerization of adjacent pyrimidines on the same DNA strand.
  • Purines and pyrimidines are considered as complex molecules themselves because they are never synthesized as such in vivo.
  • Some introns also have a sequence rich in pyrimidines that adds up to 10 additional bases at the 3’ end.

Origin

late 19th century: from German Pyrimidin, from pyridine, with the insertion of -im- from imide.

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