Definition of anal

The word "anal" has its roots in ancient Greek. In Greek, the word "ánal" (ἄναλ) means "away from" or "backward". This prefix is derived from the prefix "ana-" ((reverse) + "l" (genitive suffix). In anatomy, the term "anal" refers to the anus, which is the opening of the digestive tract at the bottom of the pelvis. This usage likely arose from the idea that the anal opening is at the end or "away from" the mouth, which is often considered the beginning of the digestive tract. The prefix "ana-" has been used in various words related to the anus, such as anastomosis (the surgical connection of two tubes, including the anus). Over time, the term "anal" has become commonly used to refer to the anus and surrounding areas.