1. The particular part of a chromosome that is associated with a nucleolus after nuclear division
   "The nucleolar organizer is crucial for ribosome production";
   - nucleolus organizer, nucleolus organiser [Brit], nucleolar organiser [Brit]

Derived forms: nucleolar organizers

Type of: anatomical structure, bodily structure, body structure, complex body part, structure

Part of: chromosome

Encyclopedia: Nucleolar organizer