| 单词 | polyadenylic acid | 
| 释义 | pol·y·ad·e·nyl·ic acid   (pŏl′ē-ăd′n-ĭlĭk) n. Abbr. poly(A)  A polymer of adenosine nucleotides that is often attached to eukaryotic messenger RNA and stabilizes the molecule before transport from the nucleus into the cytoplasm. | 
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