There are several synonyms for the term "alizarin red", which is a red pigment commonly used in various industrial and scientific applications. Some popular synonyms for alizarin red include alizarin crimson, mordant red, and Turkey red. Alizarin crimson is a shade of red that closely resembles alizarin red, while mordant red is a more general term used to describe any red dye that requires a mordant to fix to the fabric or surface. Meanwhile, Turkey red references a traditional method of dyeing red fabrics with a specific mix of madder root and oil. Despite these variations in terminology, each of these synonyms ultimately refers to a deep and richly saturated shade of red.