The word "clysma" is relatively obscure and rarely heard in everyday conversation. However, it is a medical term that refers to a solution administered into the rectum for medicinal purposes. It is also sometimes referred to as an enema solution. Synonyms for clysma include rectal solution, rectal enema, and rectal injection. These terms all refer to the same procedure of administering medication or liquid into the rectum for therapeutic purposes. While not a common term, understanding the meaning and synonyms of clysma can be helpful to those in the medical field or those who may need to undergo this type of treatment.