The term 'CENTRAL' can be broken down into two parts: a prefix and a suffix. The prefix is 'MID, ' which is a three-letter word meaning 'in the MIDDLE.' The suffix is 'medi, ' which is a four-letter word meaning 'MIDDLE.' Together, these two words form the term 'CENTRAL, ' which means 'in the MIDDLE' or 'at the center.' CENTRAL is often used to describe something that is located in the MIDDLE of a larger area or group, or something that is considered to be the most important part of a whole.