Category: M

  • Morrow’s operation

    Surgical excision of a segment of heart muscle (myocardium) of the basal anterior ventricular septum below the aortic valve to treat hypertrophic obstructive cardiomyopathy.  

  • Morphovar

    Variants within a species defined by variation in morphological characteristics.  

  • Morphography

    The classification of organisms by form and structure.  

  • Morpho differentiation

    The stage of tooth formation that determines the shape and size of the tooth crown.  

  • Morning stiffness

    Limitations of joint and muscle movement that are present on awakening or after resting, but which subside with activity. This is one of the principal symptoms of inflammatory, rather than degenerative, arthritis.  

  • Morning care

    Care provided for a patient, which includes measuring temperature, pulse, and respiration, assistance with oral hygiene and bathing, changing bed linen, and providing breakfast.  

  • Morgue

    A place for holding dead bodies until they are identified or claimed for burial.  

  • Morganella morganii

    A gram negative bacillus that is part of colon flora; it may cause urinary tract infections, wound infections, bacteremia, meningitis, keratitis, and acute enteritis.  

  • Morcellation

    Method of removing a fetus, tumor, or organ by pieces. The process of fragmenting tissue or tumors into smaller segments.  

  • Morbidity and mortality weekly report

    The weekly report of illness and death rates for a variety of diseases and conditions, published by the Centers for Disease Control and Prevention, Atlanta, Georgia. Prominent in the material are statistics on communicable diseases in each state, territory, and 121 major cities in the U.S. Articles concerning outbreaks of disease or accidents appear in…