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Definition for Pneumonoultramicroscopicsilicovolcanoconiosis

User Poitroae
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Step-by-step explanation:

an obscure term ostensibly referring to a lung disease caused by silica dust, sometimes cited as one of the longest words in the English language.

User Eihwaz
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1 vote

Answer:

A lung disease caused by silica dust, a type of toxic dust from coal mines.

User Chillie
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