An alternative term for a An anatomical abnormality affecting the lowermost part of brain, where it joins the spinal cord, at the top of the neck. Various sub-types are described - see under their individual names. The term hindbrain hernia is sometimes used to incorporate all forms.. It is better than the A medical term is described as being eponymous when it is the name of a person or a place. The literal translation of the Greek word is “name placed upon”. Most often the name is that of a medical person who first described a condition. Sometimes it may be the name of a place where a disease first developed. Very occasionally it may be the name of a patient who was first recognised as having the condition to which the eponym is applied. term because it is in many ways more descriptive of the anatomical abnormality.