micronucleus

(mī′krō no̵̅o̅′klē əs, -nyo̵̅o̅′-)

noun

the smaller of two types of nuclei present in the cells of ciliated protozoans, associated primarily with reproduction and genetics

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See micronucleus in American Heritage Dictionary 4

noun pl. mi·cro·nu·cle·i (-klē-īˌ) or mi·cro·nu·cle·us·es

The smaller of two nuclei in ciliate protozoans that contains genetic material and functions in reproduction.

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