Last Updated
：2025/12/04
oil bug
（ plural ）
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(petroleum industry, slang, US, dated) A microfossil, particularly a foraminiferan.
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oil bug
The veteran geologist smiled as he pointed out an oil bug in the thin section, recognizing the tiny foraminiferan that suggested ancient marine deposits.
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The veteran geologist smiled as he pointed out an oil bug in the thin section, recognizing the tiny foraminiferan that suggested ancient marine deposits.
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