nucleolus

English Thesaurus

1. a small round body of protein in a cell nucleus; such organelles contain RNA and are involved in protein synthesis (noun.body)

hypernym	:	cell organ, cell organelle, organelle,
definition	:	a specialized part of a cell; analogous to an organ (noun.body)

part meronym	:	cell nucleus, karyon, nucleus,
definition	:	a part of the cell containing DNA and RNA and responsible for growth and reproduction (noun.body)