| 单词 | geologic time |
| 释义 | geologic time in American English the time period (c. 4.55 billion years) representing the earth's geologic history geologic time in American Englishnoun the succession of eras, periods, and epochs as considered in historical geology Word origin [1860–65]This word is first recorded in the period 1860–65. Other words that entered Englishat around the same time include: Paleolithic, big brother, monism, mutualism, raiderExamples of 'geologic time' in a sentence |
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