Category: P

  • Protractor

    A muscle with the function of extending a body part. An instrument formerly used to remove foreign bodies from wounds.  

  • Protract

    To make something last a long time. To extend or lengthen a body part.  

  • Protozoon

    A tiny simple organism with a single cell.  

  • Protozoan

    Referring to protozoa. Protozoa, single-celled, animal-like microorganism; some protozoa produce disease in humans. A single-celled organism that is hundreds of times larger and has a more complex structure than bacteria.  

  • Protoporphyrin IX

    The commonest form of porphyrin, found in haemoglobin and chlorophyll. The most common type of porphyrin found in nature. It is a constituent of hemoglobin, myoglobin, most of the cytochromes, and the commoner chlorophylls. A protein that serves as a valuable indicator for assessing one’s iron levels. Hemoglobin is comprised of a protein-heme complex, with…

  • Protopathic

    Referring to nerves which are able to sense only strong sensations. Referring to a first symptom or lesion. Referring to the first sign of partially restored function in an injured nerve. Describing the ability to perceive only strong stimuli of pain, heat, etc. Primitive, undiscriminating, especially with respect to sensing and localizing pain stimuli. Referring…

  • Proteus

    A genus of bacteria commonly found in the intestines. Genus of Gram-negative non-lactose-fermenting bacteria within the family of the Enterobacteriaceae, and characterized by their ability to liberate ammonia from urea and to deaminate phenylalanine. Some species spread over the surface of agar plate cultures, a feature associated with their motility. They are common in faeces,…

  • Proteose

    A water-soluble compound formed. One of the class of intermediate products of proteolysis between protein and peptone.  

  • Protein deficiency

    A lack of enough proteins in the diet.  

  • Protein-bound iodine test

    Test to measure if the thyroid gland is producing adequate quantities of thyroxine.