book lung \ˈbuk-ˌləŋ\ noun: a saccular breathing organ in many arachnids containing thin folds of membrane arranged like the leaves of a book
Etymology: from the organ’s similarity in shape to a book and similarity in function to a lung
Book lung conjures so many poetic images and associations that each mind can spin off on its own tangents.
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1 comment:
hmmmm
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