Category: P

  • Paraformaldehyde

    A white crystalline polymer of formaldehyde, used as a disinfectant fumigant and in the treatment of certain skin disorders. A white, powdered antiseptic and disinfectant, a polymer of formaldehyde.  

  • Paraffinoma

    A type of tumor induced by the presence in the tissues of paraffin wax, formerly used in cosmetic surgery to increase the size of the female breasts. A growth resembling a tumor beneath the skin, resulting from extended contact with paraffin. Inhaling paraffin can also lead to the formation of such swellings in the lungs.…

  • Paracoccidioides

    A genus of yeastlike fungi causing infection of the skin and mucous membranes. The species P. brasiliensis causes a chronic skin disease. South American blastomycosis.  

  • Pantropic

    Describing a virus that can invade and affect many different tissues of the body, for example the nerves, skin, or liver, without showing a special affinity for any one of them.  

  • Panstrongylus

    A genus of large bloodsucking bugs. P. megistus is important in transmitting Chagas’ disease to man in Brazil. A genus of insects belonging to the order Hemiptera, family Reduviidae. This genus is a vector for Trypanosoma cruzi, the causative agent of Chagas’ disease (American trypanosomiasis), a parasitic illness that causes heart failure and neural dysfunction.…

  • Panniculus

    A membranous sheet of tissue. For example, the panniculus adiposus is the fatty layer of tissue underlying the skin.  

  • Panmixis

    Random mating within a population, i.e. when there is no selection of partners on religious, racial, social, or other grounds.  

  • Panhystero-oophorectomy

    Surgical removal of the entire womb and of one or both ovaries. Surgical procedure to remove both the uterus and the ovaries.  

  • panhysterocoipectomy

    Surgical removal of the entire womb and the vagina.  

  • Pancreatotomy

    Surgical opening of the duct of the pancreas in order to inspect the duct, to join the duct to the intestine, or to inject contrast material in order to obtain X-ray pictures of the duct system.