分类：教育/科学-学习帮助
问题：世界上最长的英语单词是什么?标注中文意思!pneumonoult 
pneumonoultramicrcopicsilicovolcanoconiosis（矽肺病）,有没有比这更长的?不能是地名,不能是词组,而且还要标上中文意思!够苛刻的吧!
回答：1913个字母，“色氨酸合成酶a蛋白质”(一种含有267种氨基酸酶)的名：methionylglutaminylarginyltyrosylglutamylserylleucylphenylalanylalanyl-glutaminylleucyllysylglutamylarginyllysylglutamylglycylalanylphenylalanylvalyl-prolyphenylalanylvalythreonylleucylglycylaspartylprolylglycylisoleucyl-glutamylglutaminylserylleucyllysylisoleucylaspartylthreonylleucylisoleucyl-glutamylalanylglycylalanylasparthlalanylleucylglutamylleucylglycylisoleucylprolyl-phenylalanylserylaspartylprolylleucylalanylaspartylglycylprolylthreonylisoleucyl-glutaminylaspfraginylalanylthreonylleucylarfinylalanylphenylalanylalanylalanyl-glycylvalythreonylprolylalanylglutaminylcysteinylphenylalanylglutamylmethionylleu-cylalanylleuoylisoleucylarginylglutaminyllysyhistidylprolylthreonylisoleucylprolyli-soleucylglycylleucylmethionyltyrosylalanylasparaginylleucylvalylphenylalany-lasparaginyllysyglycylisoleucylaspartylglutamylphenylalanylthrosylalanyl-glutaminylcysteinylglutamyllysylvalylglycylvalylaspartylserylvalylleucylval-ylalnylaspartylvalylprolylvalylglutaminylglutamylserylalanylprolylphenylalanylarginyl-glutaminylalanylalanylleucylarginylhistidylasparaginyvalylalanylprolylisoleucyl-prolylisoleucylphenylalanylisoleucylphenylalanylisoleucylcysteinylprolylproly-laspartylalanylaspartylaspartylaspartylleucylleucylarginylglutaminylisoleucy-lalanylseryltyrosylglycylarginylglycyltyrosylthreonyltyrosylleucylleucylsery-larginylalanylglycylvalylthreonylglycylalanylglutamylasparainylarginylalanylalanylleucyl-prolylleucylasparaginylhistidylleucylvalylalanyllysylleucyllysylglutamyltyrosylasparaginy-lalanylalanylprolylprolylleucylglutaminylglgycylphenylalanylglycylisoleucylserylalanylproly-laspartylglutaminylvalyllysylalanylalanylisoleucylaspartylalanylglycylalanylalanylgly-cylalanylisoleucylserylglycylserylalanylisoleucylvalyllysylisoieucylisoleucylglutamyl-glutaminylhistidylasparaginylisoleucylglutamylprolylglutamyllysylmethionylleucylalaalanylleucyllysylvalylphenylalanylcalylglutaminylprolylmethionlysylalanylalanylthreony-larginylserine