"micronucleus" meaning in English

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  "etymology_text": "Etymology tree\nEnglish micro-\nProto-Italic *knuks\nLatin nux\nLatin nucleuslbor.\nEnglish nucleus\nEnglish micronucleus\nFrom micro- + nucleus.",
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        "(biology) A small nucleus."
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  "etymology_text": "Etymology tree\nEnglish micro-\nProto-Italic *knuks\nLatin nux\nLatin nucleuslbor.\nEnglish nucleus\nEnglish micronucleus\nFrom micro- + nucleus.",
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