ABSTRACT At the 8th European Nucleolar Workshop, which was organized by M. Bouteille and colleagues at Banyuls-sur-mer in June 1983, a discussion was held on nucleolar nomenclature. The terms that are italicized in the following report were agreed upon. The short descriptions following each term were written to convey the consensus of opinion that emerged. After the discussion a report was displayed for approval. The following account is the approved, amended report of the meeting, incorporating a few minor points made in later comments.