PMR (polymyalgia rheumatica)
A disorder of the muscles and joints of older persons characterized by pain and stiffness, affecting both sides of the body, and involving the shoulders, arms, neck, and buttock areas.
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- PNET
Ewing tumor of bone; extraosseus Ewing tumor (tumor growing outside of the bone); primitive neuroectodermal tumor (PNET), also known as peripheral neuroepithelioma; and Askin tumor (PNET of the chest wall).
- Pneuma
The life-giving principle. According to the school of medicine in ancient Alexandria, life was associated with a vapor called the pneuma. The belief in pneuma was called pneumatism. In hindsight, pneumatism was an early attempt to explain respiration which is, indeed, the life-giving principle.
- Pneumatic larynx
A device that uses air to produce sound, helping a person whose larynx has been removed to talk.
- Pneumo-
Prefix pertaining to breathing, respiration, the lungs, pneumonia, or air.
- Pneumococcal immunization
A vaccine that prevents one of the most common and severe forms of pneumonia, the form that is caused by Streptococcus pneumoniae (pneumococcus bacterium).