Category: P

  • Pathological depression

    An unusually severe state of depression, possibly leading to suicide.  

  • Pathogenicity

    The ability of a pathogen to cause a disease. The state of producing or being able to produce pathological changes and disease. The quality or characteristic of being pathogenic pertains to the ability to cause disease, and is frequently measured by its degree of virulence. However, it is important to maintain a distinction between pathogenicity…

  • Pathogenetic

    Referring to pathogenesis.  

  • Paternity

    The fact of being or becoming a father. The identity of a father.  

  • Patency

    The condition of being wide open. Condition of having a wide, open lumen. Having a significant opening or expansion, a blood vessel that has been dilated or reopened is described as patent.  

  • Patellectomy

    A surgical operation to remove the kneecap.  

  • Patellar tendon

    A tendon just below the kneecap.  

  • Patellar reflex

    The jerk made as a reflex action by the knee, when the legs are crossed and the patellar tendon is tapped sharply. Deep tendon reflex in which tapping the tendon below the patella causes a contraction of the quadriceps muscle of the thigh and extension (kicking) of the lower leg; used diagnostically to test nerve…

  • Patellar

    Referring to the kneecap.  

  • Pat

    To hit someone or something lightly and gently with the palm of the hand or some other flat surface.