n.
Pronunciation: ˌ ma-kr ō - ' nü-kl ē - ə s, - ' nyü-
Function: noun
Etymology: New Latin
Date: 1892
: a relatively large densely staining nucleus of most ciliate protozoans that is derived from micronuclei and controls various nonreproductive functions
– mac · ro · nu · cle · ar \ ˌ mak-r ō - ' nü-kl ē - ə r, - ' nyü-, ÷-ky ə -l ə r \ adjective