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mac•ro•nu•cle•us



Pronunciation: (mak"rō-nOO'klē-us, -nyOO'-), [key]
n. Biol.
the larger of the two types of nuclei occurring in ciliate protozoans, having a multiple set of chromosomes and functioning in cell metabolism and protein synthesis. Cf. micronucleus.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

macronucleatemacronutrient

 

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