Author: Glossary
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Digenetica
An order of parasitic flatworms belonging to the class Trematoda. It reproduces asexually, lives usually in molluscs, and alternates with a sexual generation living in vertebrates as their final host. It includes all four groups of flukes parasitic in humans.
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Digastric
Having two bellies; said of certain muscles.
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Diffusate
In dialysis, the portion of a liquid that passes through a membrane and that contains crystalloid matter in solution.
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Diffraction grating
The device in a spectrophotometer that disperses white light into the colors (wavelengths) of the electromagnetic spectrum, using multiple lines precisely etched into an optically aligned material such as a specialized mirror or metal plate.
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Differentiation therapy
The use of medications to make cancer cells evolve into cells no longer capable of infinite replication.
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Differential lung ventilation
The use of different ventilatory strategies in each lung in a patient with focal lung disease, e.g., a patient undergoing surgery to remove a tumor in one lobe of a lung but not another, or a patient with more severe COPD on one side of the chest than another. This technique requires a double-lumen endotracheal…
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Differential amplifier
An amplifier used to increase the difference between two signals, one of which is usually a reference.
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Differential
Marked by or relating to differences. A hematological analysis that involves the calculation of the proportions of different cell types present in the blood, along with determining the overall count of cells.
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Dieulafoy’s triad
Tenderness, muscular contraction, and skin hyperesthesia at McBurney’s point in acute appendicitis.
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Dietotherapy
Use of the sciences of dietetics and nutrition in treating disease.