世界上最长的英文单词是哪个

纸扎戏偶

  

  你能想到吗,世界上竟然存在由1913个字母构成的最长的英文单词?没错,这个单词实际上是一种叫“色氨酸合成酶”的蛋白质。

  这个单词最早出现在20世纪60年代一本叫作“化学摘要”的杂志上的。因为当时人们在表达蛋白质序列的时候,是按照把所有的氨基酸序列整个列出来作为它的名字的。虽然人们后来发现这种命名方法不可取,很快就更改了命名规则,但这个由1913个字母组成的单词已经发表了,并且之后还被一些词典所引用,这才有了这个世界上最长的英文单词。

  这个单词实际上是266个氨基酸的形容词的罗列,最后是“serine”,所以一共是267个氨基酸。这个词的出现体现了19世纪德语对化学的影响,以德语的命名方式,才会出现类似“ribulosebisphosphatecarboxylaseoxygenase”这么长的词汇。

  下面就是这个“魔鬼级别”的英文单词:

  methionylglutaminylarginyltyrosylglutamylserylleucylphenylalanylalanylglutaminylleucyllysylglutamylarginyllysylglutamylglycylalanylphenylalanylvalylprolylphenylalanylvalylthreonylleucylglycylaspartylprolylglycylisoleucylglutamylglutaminylserylleucyllysylisoleucylaspartylthreonylleucylisoleucylglutamylalanylglycylalanylaspartylalanylleucylglutamylleucylglycylisoleucylprolylphenylalanylserylaspartylprolylleucylalanylaspartylglycylprolylthreonylisoleucylglutaminylasparaginylalanylthreonylleucylarginylalanylphenylalanylalanylalanylglycylvalylthreonylprolylalanylglutaminylcysteinylphenylalanylglutamylmethionylleucylalanylleucylisoleucylarginylglutaminyllysylhistidylprolylthreonylisoleucylprolylisoleucylglycylleucylleucylmethionyltyrosylalanylasparaginylleucylvalylphenylalanylasparaginyllysylglycylisoleucylaspartylglutamylphenylalanyltyrosylalanylglutaminylcysteinylglutamyllysylvalylglycylvalylaspartylserylvalylleucylvalylalanylaspartylvalylprolylvalylglutaminylglutamylserylalanylprolylphenylalanylarginylglutaminylalanylalanylleucylarginylhistidylasparaginylvalylalanylprolylisoleucylphenylalanylisoleucylcysteinylprolylprolylaspartylalanylaspartylaspartylaspartylleucylleucylarginylglutaminylisoleucylalanylseryltyrosylglycylarginylglycyltyrosylthreonyltyrosylleucylleucylserylarginylalanylglycylvalylthreonylglycylalanylglutamylasparaginylarginylalanylalanylleucylprolylleucylasparaginylhistidylleucylvalylalanyllysylleucyllysylglutamyltyrosylasparaginylalanylalanylprolylprolylleucylglutaminylgl。

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