PROPORTIONTwo equal ratios considered simultaneously.
PSYCHOLOGICALBelonging to or of the nature of psychology; the mental
PURULENTPus filled or containing pus.
PUSTULEA small, inflamed elevation of the skin containing pus.
QUADRAPLEGIALoss of motion and sensation below the neck.
RALESAn abnormal sound, either moist or dry, classified by location (e.g.,
bronchial rales, laryngeal rales).
RATIOThe relationship of one quantity to another of like units.
RESERVOIRA carrier on which an infectious agent depends primarily for
RESISTANCEThe sum total of body mechanisms that provide barriers to the
invasion of infectious agents or their toxic products.
RHINORRHEAThe free discharge of a thin nasal mucus.
RHONCHUS(pl. rhoncii) A rattling throat sound due to partial obstruction; a dry
coarse rale in the bronchial tubes.
SACRUMTriangular bone just below the lumbar vertebrae.
SANITIZATIONThe process of cleaning with soap and water or boiling to
reduce the number of organisms to a safe level.
SEPSISThe growth of pathogens in living tissue.
SERUM(pl. serums or sera) The watery portion of an animal fluid remaining
after coagulation; plasma minus the clotting proteins and clotting cells.
SHOCKCollapse of the cardiovascular system, characterized by circulatory
deficiency and depression of vital functions.
SOLUBILITYThe ability of a solid to dissolve in a given amount of solvent.
SPIRITSAlcoholic or hydroalcoholic solutions of volatile substances.
SPOREA microorganism in a resting or dormant state that renders it highly
resistant to destruction.
SPRAINInjury to the ligaments and soft tissues that support a joint.
STERILEFree of all living organisms.
STERILIZATIONThe process of destroying all organisms on a substance or
article by exposure to physical or chemical agents; the process by which all
organisms, including spores, are destroyed.
STERTOROUSSnoring-type breathing sound.
STRAINForcible overstretching or tearing of a muscle or tendon.
STRIATEDStriped or streaked.