micronucleus: Meaning and Definition of

mi•cro•nu•cle•us

Pronunciation: (mī"krō-n'klē-us, -ny'-), [key]
— pl. -cle•i
  1. the smaller of the two types of nuclei occurring in ciliate protozoans. Cf.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.