| nucleolus organizer | (n) the particular part of a chromosome that is associated with a nucleolus after nuclear division, Syn. nucleolar organizer, nucleolar organiser, nucleolus organiser |
| Nucleolar | a. (Biol.) Of or pertaining to the nucleolus of a cell. [ 1913 Webster ] |
| Polynucleolar | a. [ Poly- + nucleolar. ] (Biol.) Having more than one nucleolus. [ 1913 Webster ] |