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

单词	stratum
释义	stratumstratum /ˈstræt̮əm, ˈstreɪ-/ noun (plural strata /ˈstræt̮ə, ˈstreɪt̮ə/) [countable] Etymology ETYMOLOGYstratum Origin: 1500-1600 Modern Latin Latin, something spread, bed, from sternere to spread out 1earth science a layer of rock of a particular kind, especially one with different layers above and below it2a social class in a society3a layer of earth, such as one where tools, bones, etc. from an ancient civilization are found by digging
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