Author: Glossary

  • Pedicle screw

    A rigid surgical implant used to stabilize adjacent spinal segments in spinal fusion surgery. Pedicle screws have been used to treat spinal disorders, including those caused by spinal cancer, congenital anomalies, trauma, and chronic pain syndromes. Potential complications may include increased pain, infection, or mechanical failure (breakage of the screws or the rods that connect…

  • Pedicellation

    The formation and development of a pedicle.  

  • Pediatric trauma score

    A method for scoring and quantifying the severity of trauma in pediatric patients.  

  • Pediatric advanced life support

    The treatment measures, including basic and advanced life support, needed to stabilize a critically ill or injured child.  

  • Pederast

    A man who indulges in anal intercourse with young boys.  

  • Pectose

    A substance found in some fruits and vegetables. It yields pectin when boiled.  

  • Pectization

    In colloidal chemistry, the conversion of a substance from sol to gel state.  

  • Pectineus

    A flat quadrangular muscle at the upper and inner part of the thigh, arising from the superior ramus of pubis and inserted between the lesser trochanter and linea aspera of the femur, which flexes and adducts the thigh.  

  • Pearl index

    A measure of the reliability of any birth control method. A Pearl index of 1.0 signifies that if 100 women use a particular contraceptive method for 1 year, only one of them will become pregnant. The most effective contraceptive methods have Pearl indexes of about 0.7.  

  • Pearl

    A small, tough mass in the sputum in asthma.