\ ˈgu̇(ə)r\
plural -s

Definition of guhr

1 : a loose earthy deposit from water occurring in the cavities of rocks, being mostly white but sometimes red or yellow, and consisting of a varying mixture of clay or ocher
2 [ by shortening ] : kieselguhr

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History and Etymology for guhr

German guhr, gur; akin to Middle High German gern to ferment, Old High German jesan

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a topic to which one constantly reverts

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