penumbraUK:**UK and possibly other pronunciationsUK and possibly other pronunciations/pɪˈnʌmbrə/US:USA pronunciation: respellingUSA pronunciation: respelling(pi num′brə)
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penumbraUK:**UK and possibly other pronunciationsUK and possibly other pronunciations/pɪˈnʌmbrə/US:USA pronunciation: respellingUSA pronunciation: respelling(pi num′brə)
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