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macronucleus

play
noun mac·ro·nu·cle·us \ˌma-krō-ˈnü-klē-əs, -ˈnyü-\

Definition of macronucleus

  1. :  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 play \ˌmak-rō-ˈnü-klē-ər, -ˈnyü-, ÷-kyə-lər\ adjective


Origin of macronucleus

New Latin


First Known Use: 1892


Medical Dictionary

macronucleus

play
noun mac·ro·nu·cle·us \ˌmak-rō-ˈn(y)ü-klē-əs\

Medical Definition of macronucleus

plural mac·ro·nu·clei \-ˌī\play also mac·ro·nu·cle·us·es

  1. :  a relatively large densely staining nucleus of most ciliate protozoans that is derived from micronuclei and controls various nonreproductive functions—compare micronucleus

  2. mac·ro·nu·cle·ar \ˌmak-rō-ˈn(y)ü-klē-ər\play adjective




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