有最難寫的漢子，就由最難讀的英文，在這世界上還有最長(zhǎng)的英文單詞。以下是小編為大家整理的資料，供大家閱讀。

　　世界上最長(zhǎng)的英文單詞;

　　“色氨酸合成酶a蛋白質(zhì)”(一種含有267種氨基酸的酶)的化學(xué)名根據(jù)英文造字規(guī)則，一共有189819個(gè)字母，全部讀完需要花費(fèi)約3.5小時(shí)。以下單詞有1909個(gè)字母，全部讀完需要花費(fèi)約25分鐘，是它的一類：

　　Methionylglutaminylarginyltyrosylglutamylserylleucylphenylalanylalanylglutaminylleucyllysylglutamylarginyllysylglutamylgly

cylalanylphenylalanylvalylprolyphenylalanYlvalythreonylleucylglycylaspartylprolylglycylisoleucylglutamylglutaminylsErylleucyllys
ylisoleucylaspartylthreonylleucylIsoleucylglutamylalanylglycylalanylasparthlalanylleucylglutamylleucylglycylisoleucylprolylphen

ylalanylseRylaspartylprolylleucylalanylaspartylglycylpRolylthreOnylisoleucylglutaminylasPfraginylalanylthreonylleucylarfinylala

nylphenylalanylalanylalanylglycylvalythreonylprolylalanylglutaminylcysteinylphenylalanylglutamylmethionylleucylalanylleuOylis
oleucylarginylglutaminyllysyhistidylprolylthreonylisoleucylprolylisoleucylglycylleucylmethionyltyrosylalanylasparaginylleucylval
ylphenylalanylasparaginyllysyglycylisoleucylaspartylglutamylphenylalanylthrosylalanylglutaminylcysteinylglutamyllysylvalylglycy

lvalylaspartylserylvalylleucylvalylalnylaspartylvalylprolylvalylglUtaminylglutamylserylalanylprolylphenylalanylarginylglutaminylala
nylalanylleucylarginylhistidylasparaginyvalylalanylprolylisoleucylprolylisoleucylphenylalanylisoleucylphenylalanylisoleucylcyste
inylprolylprolylaspartylalanylaspartylaspartylaspartylleucylleucylarginylglutaminylisoleucylalanylseryltyrosylglycylarginylglycyltyr
osylthreonyltyrOsylleucylleucylserylarginylalanylglycylvalylthreonylglycylalanylglutamYlasparainylarginylalanylalanylleucylprolyl
leucylasparaginylhistidylleucylValylalanyllysylleucyllysylglutamyltyrosylasparaginylalanylalanylprolylprolylleucylglutaminylglgyc
ylphenylalanylglycylisoleucylserylalanylprolylaspartylglutaminylvalyllysylalanylalanylisoleucylaspartylalanylglycylalanylalanylgly
cylalanylisoleucylserylglycylserylalanylisoleucylvalyllysylisoIeucylisoleucylglutamylglutaminylHistidylasparaginyliSoleucylgluta
mylprolylglutamyllysylmethionylleucylalanylalanylleucyllysylvalylphenylalanylcalylglutaminylprolylmethionlysylalanylalanylthreo
nylarginylserine

　　有人說(shuō)這是個(gè)謠言;

　　這個(gè)詞在形式上是按順序?qū)⒌鞍椎乃邪被釟埢挠⑽拿帕性谝黄稹?/p>

　　其真實(shí)的英文名稱只有五個(gè)字母：Titin.

　　又有人反駁說(shuō);

　　這個(gè)詞雖然是把所有氨基酸殘基的英文名排列在一起，但是它是IUPAC名。比如，一個(gè)人的基因組不屬于化合物，而這個(gè)色氨酸合成酶a蛋白質(zhì)正是化合物，所以可以使用IUPAC名(當(dāng)然不常用就是了)。

　　其他類似的單詞

　　除此以外，還有一個(gè)類似的單詞，一共有172個(gè)字母：

　　Lopadotemachoselachogaleokranioleipsanodrimhypotrimmatosilphioparaomelitokatakechymenokichlepikossyphophattoperist

eralektryonoptekephalliokigklopeleiolagoiosiraiobaphetraganopterygon。

　　這是一個(gè)從其他語(yǔ)言翻譯成英文的一個(gè)單詞，意思是一種食物，英語(yǔ)詞典不收錄這個(gè)詞。目前還不確定這個(gè)詞是否和之前那個(gè)1909個(gè)字母的詞一樣，也是合成出來(lái)的。