英语词汇“penumbra”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-新都网

单词	penumbra
释义	penumbra noun /pəˈnʌmbrə/ /pəˈnʌmbrə/ (specialist) jump to other results an area of shadow which is between fully dark and fully light (astronomy) the shadow made by the earth or the moon during a partial eclipse compare umbraTopics Spacec2 Word Originmid 17th cent.: modern Latin, from Latin paene ‘almost’ + umbra ‘shadow’.
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