Coccal is a term that is often used in the medical field to describe bacteria that are spherical in shape. However, there are various other terms that can be used as synonyms for this word. For instance, the term "spheroid" can be used to describe a spherical shape. "Spherical," "round," and "globular" are other options that can be used to describe the shape of these bacteria. Additionally, "micrococcal" can be used to describe a bacterium that is small and spherical. In summary, there are numerous synonyms for the word "coccal" that can be used in a medical or scientific context.