Noun
any of several substances found in the nuclei of all living cells; consists of a protein bound to a nucleic acid
Source: WordNetIn the cytoplasm, ribosomal RNA and protein combine to form a nucleoprotein called a ribosome. Source: Internet
Proteins involved in viral replication are the nucleoprotein, phosphoprotein, and polymerase protein while the genomic RNA forms the ribonucleocapsid. Source: Internet