英語最長單詞是什麼?

世界上最長的英文單詞是什麼？

pneumonoultramicroscopicsilicovolcanoconiosis [醫]硅酸鹽沉著病,矽肺病

以上過去在電視節目中講過。

現在又有一說，最長的單詞是“色氨酸合成酶A蛋白質”

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