英语词汇“index fossil”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	index fossil
释义	index fossil noun : a fossil that is usually of narrow time range and wide spatial distribution and that is used in the identification of related geologic formations (as in locating new petroleum reserves)
随便看	prosocele prosocoel prosocoele prosodeme prosodetic prosodiac prosodiacal prosodiacally prosodial prosodially prosodian prosodic prosodical prosodically prosodion prosodist prosodus prosody prosogaster prosogyrate prosoma prosomal proso millet prosop- prosop

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