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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «P»:

  1. Patellar tendonopathy Patellar tendonopathy
    Patellar tendonopathy: See: Patellar tendonitis....
  2. Patellectomy Patellectomy
    Patellectomy: An operation to remove the patella....
  3. Patellofemoral joint Patellofemoral joint
    Joint, patellofemoral: One of the knee joints. The knee has three parts. The thigh bone (femur) meets the large shin bone (tibia) forming the main knee joint. This joint has an inner (medial) and an outer (lateral) compartment. The kneecap (patella) and the femur form a third joint, called the patel...
  4. Patellofemoral syndrome (PFS) Patellofemoral syndrome (PFS)
    Patellofemoral syndrome (PFS): The commonest cause of chronic knee pain, PFS characteristically causes vague discomfort of the inner knee area, aggravated by activity (running, jumping, climbing or descending stairs) or by prolonged sitting with knees in a moderately bent position (the so-called...
  5. Patent (adjective) Patent (adjective)
    Patent (adjective): Open, unobstructed, affording free passage. Thus, for example, the bowel may be patent (as opposed to obstructed). Pronounced "pa-tent" with the accent on the first syllable. ...
  6. Patent (noun) Patent (noun)
    Patent (noun): A device giving exclusive control and possession. Before the commercialization of biomedical inventions, the word "patent" in this sense had no place in a medical dictionary. Now the patent is the foundation of the biotechnology industry. ...
  7. Patent ductus Patent ductus
    Patent ductus: Failure of the ductus arteriosus, which functions in fetal life as an arterial shunt, to close on schedule at or shortly after birth. When the shunt remains open, it is said to be patent. See: Patent ductus arteriosus....
  8. Patent ductus arteriosus Patent ductus arteriosus
    Patent ductus arteriosus: Failure for the ductus arteriosus, an arterial shunt in fetal life, to close on schedule. Before birth, blood pumped from the heart through the pulmonary artery toward the lungs is shunted into the aorta. This arterial shunt is a short vessel called the ductus arteriosus. W...
  9. Patent urachus Patent urachus
    Patent urachus: A birth defect involving the urachus, a canal connecting the bladder of the fetus with the allantois, a structure that contributes to the formation of the umbilical cord. The lumen (inside) of the urachus is normally obliterated during embryonic development, transforming the urachus ...
  10. Paterfamilias Paterfamilias
    Paterfamilias: The male head of the family; the father figure. Paterfamilias is the Latin for father of the household. It is compounded from pater (father) + familias, which comes from familia (household), from famulus (servant, slave). The feminine counterpart is the materfamilias....
  11. Paternal Paternal
    Paternal: 1. Pertaining to the father as, for example, a paternal age effect.2. Related through the father as, for example, the paternal grandparents.3. Inherited from the father as, for example, the paternal X chromosome. ...
  12. Paternal age Paternal age
    Paternal age: The age of the father at the time he conceives a child. The present mean (average) paternal age is 27 years in the US population. Advanced paternal age is clearly associated with an increased risk of new mutations, a risk that rises linearly with the age of the father. See: Advanced pa...
  13. Paterson-Kelly syndrome Paterson-Kelly syndrome
    Paterson-Kelly syndrome: See: Plummer-Vinson syndrome....
  14. Patho- Patho-
    Patho-: A prefix derived from the Greek "pathos" meaning "suffering or disease." Patho- serves as a prefix for many terms including pathogen (disease agent), pathogenesis (development of disease), pathology (study of disease), etc. The corresponding suffix is -pathy....
  15. Pathobiology Pathobiology
    Pathobiology: Pathology, with emphasis on the pathophysiological and pathogenetic mechanisms underlying human disease....