from The Century Dictionary.

  • noun The Oriental roller cotton-gin, made of two round pieces of hard wood fixed in a rude frame.


Sorry, no etymologies found.


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  • In India a primitive and cumbersome set of rollers called a churka partially cleaned India cotton.

    Home Life in Colonial Days Alice Morse Earle 1881

  • For the black-seed or sea-island cotton, the churka, or roller gin, used in India from time immemorial, drawing the fiber slowly between a pair of rollers to push out the seeds, did the work imperfectly, but this churka was entirely useless for the green-seed variety, the fiber of which clung closely to the seed and would yield only to human hands.

    The Age of Invention : a chronicle of mechanical conquest Holland Thompson 1906


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