LESION-Any pathological or traumatic discontinuity of tissue or loss of function of a part.

LEUKOCYTE-White blood cell.
LEUKOCYTOSIS-Abnormally high white blood cell count.
LEUKOPENIA-Abnormally low white blood cell count.
LEVIGATION-Adding a small amount of liquid to a mortar and pestle while triturating.

LIGAMENT-A sheet or band of tough, fibrous tissue connecting two or more bones or cartilages, or supporting an organ, fascia, or muscle.

LINIMENT-Solution or mixture of various substances in oily, alcoholic, or emulsified form, intended for external application.

LUMBAR-Pertaining to the part of the back between the thorax and the pelvis.
LYOPHILIZATION-The creation of a stable preparation of a biological substance (blood plasma, serum, etc.) by rapid freezing and dehydration of the frozen product under high vacuum.

MACERATION-Softening of a solid by soaking.
MAGMAS-Thick, creamy, aqueous suspensions of inorganic substances in a very fine state.

MALAISE-Avague feeling of bodily discomfort.
MASTICATION-Chewing.
MEDICAL ASEPTIC TECHNIQUE-The practice that prevents the spread of pathogens from person to person, place to place, or place to person.

MELENA-Excretion of black tarry stools.
METABOLISM-The sum of all the physical and chemical processes by which living organized substance is produced and maintained. Also, the transformation by which energy is made available to the organism.

METAMORPHOSIS-Change of shape or structure, particularly a transition from one development stage to another, as from larva to adult form.

METROLOGY-The science of weights and measures.
MICROORGANISM-Aminute, living organism invisible to the naked eye.
MICTURATION-Voiding; urinating.
MORBIDITY RATE-An incidence rate that includes all persons in a particular population who become ill during a specific period of time.

MORPHOLOGY-The science of forms and structure of organized beings.
MORTALITY RATE-The number of deaths, reported in a particular population, over a specific period of time, divided by the total population, reported as deaths per 1,000 population. If the deaths are from one cause, then it is known as a disease-specific mortality rate.

MOTTLED-Marked with blotches or spots of different colors or shades.
MUCUS-Asticky substance secreted by mucous membranes.
MYDRIATIC-Any drug that dilates the pupil.
MYELIN-Alipid substance that forms a sheath around certain nerve fibers.
MYELINATED-Covered with a myelin sheath.
NECROSIS-The death of tissue, usually in small, localized areas.
NOSOCOMIAL-Originating in a hospital.
NOTICE-A directive of a one-time or limited nature that has a self-canceling provision and the same force or effect as an instruction.

NUTRITION-The total process of providing the body with nutriments, and assimilating and using them.

OINTMENT-Asemisolid, fatty, or oily preparation of medicinal substances for external application.

OLFACTORY-Pertaining to the sense of smell.
OLIGEMlA-Deficiency in the volume of blood.
OPHTHALMIC-Pertaining to the eye.
ORGANISM-Any living thing.
OSMOSIS-The diffusion of fluids through a membrane or porous partition.
OSSIFICATION-Changing or developing into bone.
OXIDATION-The union of a substance with oxygen.
PALPABLE-Capable of being touched or felt.
PALPITATION-Anabnormal, rapid, regular or irregular beating of the heart, felt by the patient.

PARAPLEGIA-Loss of motion and sensation of the lower half of the body.
PARASITICIDES-Drugs that kill parasites.
PARENTERAL-Administration of drugs by injection.
PARESIS-Slight or partial paralysis.
PAROXYSM-A sudden attack, or intensification of the symptoms of a disease, usually recurring periodically.

PATHOGEN-An organism capable of producing disease or causing infections.
PATHOGENICITY-The capability of an infectious agent to cause disease in a susceptible host.

PERCUSSION-The act of striking a body part with short, sharp blows as an aid in diagnosing the condition by evaluating the sound obtained.

PERIPHERAL-Outward part or surface.
PERSISTENT-Stubborn; persevering.
PETECHIA-(pl. petechiae) Around pinpoint, nonraised, purplish red spot caused by hemorrhage in the skin.

pH-Scale measuring the acidity or alkalinity of a solution.
PHAGOCYTOSIS-The ingestion and destruction by phagocytes of cells, microorganisms, and other foreign matter in the blood or tissue.

PHARMACOGNOSY-The study of the action of drugs and their uses.
PHYSIOLOGICAL-Characteristic of or appropriate to an organism's functioning.

PLEXUS-Network.
PRECIPITATION-The quality or state of being separated from solution or suspension by chemical or physical change, usually as an insoluble amorphous or crystalline solid.

PRONE-Lying face down.
PROPHYLACTIC-The prevention of disease; preventive treatment.

PROPORTION-Two equal ratios considered simultaneously.
PROSTRATION-Utter exhaustion.
PRURITIS-Intense itching.
PSYCHOLOGICAL-Belonging to or of the nature of psychology; the mental process.

PURULENT-Pus filled or containing pus.
PUSTULE-Asmall, inflamed elevation of the skin containing pus.
QUADRAPLEGIA-Loss of motion and sensation below the neck.
RALES-An abnormal sound, either moist or dry, classified by location (e.g., bronchial rales, laryngeal rales).

RATIO-The relationship of one quantity to another of like units.
RESERVOIR-A carrier on which an infectious agent depends primarily for survival.

RESISTANCE-The sum total of body mechanisms that provide barriers to the invasion of infectious agents or their toxic products.

RHINORRHEA-The free discharge of a thin nasal mucus.
RHONCHUS-(pl. rhoncii) Arattling throat sound due to partial obstruction; a dry coarse rale in the bronchial tubes.