Metacentric is a term used to describe a chromosome that has its centromere located approximately in the middle of its length. Some synonyms for metacentric include central, equatorial, and midzone. These terms describe the same general characteristic of the chromosome being divided roughly in half by the location of the centromere. Other related terms include submetacentric, which describes a chromosome with a centromere that is slightly off-center, and acrocentric, which describes a chromosome with a centromere located near one end. Understanding different chromosome configurations and terminology is important in the field of genetics and can help scientists to identify genetic disorders and diseases.