6. pneumonoultramicyoscpicailicovolcanoconiosis
这个字是由45个字母组成的。出现在韦氏辞典第八版的版本中，意思是“吸入硅酸盐细末或石英岩灰而形成的肺尘埃沉着病”。矿工特别容易得这种病。
7. antipericatametaanaparcircumvolutiorectumgustpoops
这个字是由50个字母组成的。有个图书馆的书架上，陈列着法国作家拉伯雷着的“葛甘塔和潘特古”故事系列。其中有一本，书名就是这个长长的英文字。
8. osseocaynisanguineoviscericartilagininervomedullary
这个字是由51个字母组成的。它是人体构造一术语，曾出现在英国作家皮考克那本名叫Headlong Hall的小说中。
12. 最后，史上最……最长的英文单词华丽登场（请做好心理准备）——1913个字母，“色氨酸合成酶a蛋白质”（一种含有267种氨基酸酶）的化学名：
methionylglutaminylarginyltyrosylglutamylserylleucyl-phenylalanylalanylglutaminylleucyllysylglutamylarginylly-sylglutamylglycylalanylphenylalanylvalylprolyphenylalany-lvalythreonylleucylglycylaspartylprolylglycylisoleucyl-glutamylglutaminylserylleucyllysylisoleucylaspartylthre-onylleucylisoleucylglutamylalanylglycylalanylasparthlal-anylleucylglutamylleucylglycylisoleucylprolylphenylalany-lserylaspartylprolylleucylalanylaspartylglycylprolylthreon-ylisoleucylglutaminylaspfraginylalanylthreonylleucylarfinyl-alanylphenylalanylalanylalanylglycylvalythreonylprolylalany-lglutaminylcysteinylphenylalanylglutamylmethionylleucylalan-ylleuoylisoleucylarginylglutaminyllysyhistidylprolylthreony-lisoleucylprolylisoleucylglycylleucylmethionyltyrosylalanyla-sparaginylleucylvalylphenylalanylasparaginyllysyglycylisoleuc-ylaspartylglutamylphenylalanylthrosylalanylglutaminylcysteinyl-glutamyllysylvalylglycylvalylaspartylserylvalylleucylvalylalnyl-aspartylvalylprolylvalylglutaminylglutamylserylalanylprolylpheny-lalanylarginylglutaminylalanylalanylleucylarginylhistidylasparag-inyvalylalanylprolylisoleucylprolylisoleucylphenylalanylisoleucyl-phenylalanylisoleucylcysteinylprolylprolylaspartylalanylaspartylas-partylaspartylleucylleucylarginylglutaminylisoleucylalanylseryltyr-osylglycylarginylglycyltyrosylthreonyltyrosylleucylleucylserylarginy-lalanylglycylvalylthreonylglycylalanylglutamylasparainylarginylalan-ylalanylleucylprolylleucylasparaginylhistidylleucylvalylalanyllysyll-eucyllysylglutamyltyrosylasparaginylalanylalanylprolylprolylleucylgl-utaminylglgycylphenylalanylglycylisoleucylserylalanylprolylaspartylg-lutaminylvalyllysylalanylalanylisoleucylaspartylalanylglycylalanylal-anylglycylalanylisoleucylserylglycylserylalanylisoleucylvalyllysyli-soieucylisoleucylglutamylglutaminylhistidylasparaginylisoleucylglu-tamylprolylglutamyllysylmethionylleucylalanylalanylleucyllysylvaly-lphenylalanylcalylglutaminylprolylmethionlysylal-anylalanylthreonylarginylserine