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| 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. |
| (used as a nonsense word by children to express approval or to represent the longest word in English.) |
brush-footed butterfly
any of a group of butterflies (order Lepidoptera) that are named for their characteristically reduced forelegs that are frequently hairy and resemble brushes. The insects' alternative name derives from the fact that there are only four functional, or walking, legs.
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