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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «P»:

  1. Physiologic jaundice of the newborn Physiologic jaundice of the newborn
    Physiologic jaundice of the newborn: Yellowish staining of the skin and whites of the newborn's eyes (sclerae) by pigment of bile (bilirubin). In newborn babies a degree of jaundice is normal. It is due to the breakdown of red blood cells (which release bilirubin into the blood) and to the ...
  2. Physiologic stress test Physiologic stress test
    Physiologic stress test: Although there can be a diversity of physiologic stress tests, this refers here to a physiologic cardiac stress test in which certain medications are administered that stimulate the heart to mimic the physiologic effects of exercise. One of these medications is dobutamine,...
  3. Physiology Physiology
    Physiology: The study of how living organisms function including such processes as nutrition, movement, and reproduction. The word "function" is important to the definition of physiology because physiology traditionally had to do with the function of living things while anatomy had to do with mor...
  4. Phytanic acid storage disease Phytanic acid storage disease
    Phytanic acid storage disease: See Refsum disease....
  5. Phytochemical Phytochemical
    Phytochemical: The active health-protecting compounds that are found as components of plants. Currently, the terms "phytochemical" and "phytonutrient" are being used interchangeably to describe those plant compounds which are thought to have health-protecting qualities. The antioxidant, immune b...
  6. Phytodermatitis Phytodermatitis
    Phytodermatitis: Inflammation of the skin caused by a plant. The basic clinical patterns of phytodermatitis are allergic phytodermatitis, photophytodermatitis, irritant contact dermatitis, pharmacologic injury, and mechanical injury....
  7. Phytonutrient Phytonutrient
    Phytonutrients: The active health-protecting Currently, the terms "phytonutrient" and "phytochemical" are being used interchangeably to describe those plant compounds which are thought to have health-protecting qualities. The antioxidant, immune boosting and other health promoting properties of...
  8. Phytotoxin Phytotoxin
    Phytotoxin: A poison in a plant. Abrin and ricin are examples of phytotoxins. Abrin comes from the seeds of a plant called the rosary pea or jequirity pea and ricin from the seeds of the castor bean plant....
  9. PI PI
    PI: In medecine, not a private investigator but a principal investigator, the person who directs a research project or program....
  10. Pia mater Pia mater
    Pia mater: One of the meninges, the pia mater is the delicate innermost membrane enveloping the brain and spinal cord. It is known informally as the pia. ...
  11. Pianist's cramp Pianist's cramp
    Pianist's cramp: A dystonia that affects the muscles of the hand and sometimes the forearm and only occurs when playing the piano (or another keyboard instrument such as the harpsichord). Similar focal dystonias have also been called writer's cramp, typist's cramp, musician's cramp, and golfer's cra...
  12. Pica Pica
    Pica: A craving for something not normally regarded as nutritive. For example, dirt. Pica is a classic clue to iron deficiency in children. It also occurs in zinc deficiency. Pica is also seen as a symptom in several neurobiological disorders, including autism and Tourette syndrome, and is somet...
  13. Pick disease Pick disease
    Pick disease: A form of dementia characterized by a slowly progressive deterioration of social skills and changes in personality leading to impairment of intellect, memory, and language. The common core of symptoms includes loss of memory, lack of spontaneity, difficulty in thinking or concentrati...
  14. Pickwickian syndrome Pickwickian syndrome
    Pickwickian syndrome: The combination of obesity, somnolence (sleepiness), hypoventilation (underbreathing), and plethoric (red) face. The syndrome is so named because of the "fat and red-faced boy in a state of somnolency" that Charles Dickens described in his novel, The Pickwick Papers. (The same ...
  15. PID (pelvic inflammatory disease) PID (pelvic inflammatory disease)
    PID (pelvic inflammatory disease): Despite its seeming lack of gender, this term is applied to women only. PID refers exclusively to ascending infection of the female upper genital tract (the female structures above the cervix). PID is the most common and serious complication of sexually transmitted...