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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «P»:

  1. Passive smoking Passive smoking
    Passive smoking: The inhaling of environmental tobacco smoke (ETS) by someone who is not smoking. See: ETS....
  2. Passive-aggressive Passive-aggressive
    Passive-aggressive: Pertaining to behavior in which feelings of aggression are expressed in passive ways as, for example, by stubbornness, sullenness, procrastination, or intentional inefficiency. The term passive-aggressive behavior was coined by military psychiatrists in a 1945 US War Department ...
  3. Passive-aggressive personality disorder Passive-aggressive personality disorder
    Passive-aggressive personality disorder: A personality disorder characterized by passive-aggressive behavior. Passive-aggressive personality disorder is no longer recognized as a diagnosis by the American Psychiatric Association ....
  4. Pasteur Institute Pasteur Institute
    Pasteur Institute: A non-profit private foundation which contributes to the prevention and treatment of disease, primarily infectious diseases, through research, education, and public health activities. The Pasteur Institute was inaugurated on November 14th, 1888. It was created thanks to the succes...
  5. Pasteur, Louis Pasteur, Louis
    Pasteur, Louis: French chemist and biologist (1822-1895) who invented pasteurization, developed the germ theory, founded the field of bacteriology and created the first vaccines against anthrax and rabies. Pasteur's impact upon medicine was so profound that his name remains attached to pasteurizat...
  6. Pasteurization Pasteurization
    Pasteurization: A method of treating food by heating it to a certain point to kill pathogenic (disease-causing) organisms but not harm the flavor or quality of the food. Milk is pasteurized by heating it to about 145°F (63°C) for 30 minutes or, using the "flash" method, by heating it to 160&...
  7. PAT PAT
    PAT: Paroxysmal atrial tachycardia ....
  8. Patau syndrome (trisomy 13 syndrome) Patau syndrome (trisomy 13 syndrome)
    Patau syndrome (trisomy 13 syndrome): A syndrome characterized by multiple malformations, commonly including scalp defects, hemangiomas (blood vessel malformations) of the face and nape of the neck, cleft lip and palate, malformations of the heart and abdominal organs, and flexed fingers with e...
  9. Patella Patella
    Patella: The kneecap by another name, the patella is the small bone that is in the front of the knee. The patella is a sesamoid bone, a little bone (sesamoid = like a sesame seed) that is embedded in a joint capsule or tendon, in this case the tendon of insertion of the quadriceps muscle (the "q...
  10. Patellar Patellar
    Patellar: Pertaining to the patella, the kneecap by another name, the familiar small bone planted in the front of the knee. Patella is a Latin word that referred to a "small pan, dish or plate." As a saucer, the patella is quite paltry and cannot have held much....
  11. Patellar ligament Patellar ligament
    Patellar ligament: See: Patellar tendon....
  12. Patellar reflex Patellar reflex
    Patellar reflex: See: Knee jerk....
  13. Patellar tendon Patellar tendon
    Patellar tendon: A tendon that extends down from the quadriceps muscle in the thigh to incorporate the patella (the kneecap) and attach it to the tibia (the shinbone), providing extension at the knee joint. The patellar tendon is also called the patellar ligament because it connects the patella to ...
  14. Patellar tendon reflex Patellar tendon reflex
    Patellar tendon reflex: See: Knee jerk....
  15. Patellar tendonitis Patellar tendonitis
    Patellar tendonitis: A common injury to the patellar tendon. Also called patellar tendonopathy or jumper's knee because it often occurs in basketball and volleyball and other high impact sports. There may be sudden aching and pain with subsequent swelling just below the kneecap and the knee may fee...