Bivalent chromatin is a term used to describe the type of chromatin that is formed during cell division. It is made up of two homologous chromosomes that are joined together at the centromere. There are a number of synonyms that can be used to describe bivalent chromatin including paired chromosomes, homologous chromosomes, and synapsed chromosomes. These terms all refer to chromosomes that have paired up during cell division and are preparing to separate into two daughter cells. Bivalent chromatin is an important part of the cell division process, and understanding its synonyms can help researchers to better understand the biology of cells.