| 单词 | pyrimidine |
| 释义 | pyrimidine n. 1. Chem. an organic nitrogenous base. 2. any of a group of derivatives with similar structure, including the nucleotide constituents uracil, thymine, and cytosine. Etymology: G Pyrimidin f. Pyridin (as PYRIDINE, IMIDE) |
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