Jisho

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Noun or verb acting prenominally
1. micro-; micro; 10^-6
Noun
2. minibusAbbreviation, See also マイクロバス
Noun
3. microfilmAbbreviation, See also マイクロフィルム
Wikipedia definition
4. Micro-Micro (μ) is a prefix in the metric system denoting a factor of 10. Confirmed in 1960, the prefix comes from the Greek μικρός (mikrós), meaning "small". The symbol for the prefix is the Greek letter μ. It is the only SI prefix which uses a character not from the Latin alphabet.
Read “Micro-” on English Wikipedia
Read “マイクロ” on Japanese Wikipedia
Read “Micro-” on DBpedia

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