It is a misspelling of the work priapism.

An antineoplastic drug (hydroxyurea) may prevent future episodes of priapism for patients with sickle cell disease.

Priapism is nothing to do with the spinal cord. It's a medical condition affecting blood flow in a man's penis.

A physical examination is needed to diagnose priapism. Further testing, including nuclear scanning or Doppler ultrasound, will diagnose the underlying cause of the condition.

In mythology, the guy with the huge penis was a man named Priapus, and he is what a priapism is named after. A priapism is a condition where an erection won't go away.