出典:Wikipedia
出典:『Wikipedia』 (2011/07/01 20:54 UTC 版)
A purine is a heterocyclic aromatic organic compound, consisting of a pyrimidine ring fused to an imidazole ring. Purines, including substituted purines and their tautomers, are the most widely distributed kind of nitrogen-containing heterocycle in nature.
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pelicans
pittas
ピーウィー
pewees
プーク
ぱかり
ピルチャード
くび
名詞の変化形:
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