Category: G
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Glass ionomer cement
A dental adhesive made from powdered aluminosilicate glass and liquid polyacrylic acid, used as a lining for dental cavities; as a permanent dental restorative material; and, as a result of leakage, as a source of fluoride. The cement is not recommended for Class II or IV restorations.
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Gustatory cell
A neuroepithelial cell or taste cell of a taste bud.
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Granule cell
A small neuron of the cerebrum or the cerebellum that contains granules.
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Giant
An active, multinucleated phagocyte created by several individual macrophages that have merged around a large pathogen or a substance resistant to destruction, such as a splinter or surgical suture. An individual or structure much larger than normal.
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Ganglion cell
Any neuron whose cell body is located within a ganglion.
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Glide catheter
A catheter inserted into the ureter to remove impacted kidney stones. A lubricated wire is advanced past the obstructing stone. The glide catheter is mounted on the wire, moved toward the kidney beyond the stone, and used to snare and retrieve the stone.
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Genetic carrier
One whose chromosomes contain a pathological gene that may be transmitted to offspring. In some cases (e.g., Tay-Sachs disease) this condition can be detected prenatally by a laboratory test done on amniotic fluid.
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Giant cell carcinoma
Carcinoma marked by the presence of unusually large cells.
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Gastric cancer
Adenocarcinoma of the stomach. About 50% to 60% of all carcinomas of the stomach occur in the pyloric region. About 20% occur along the lesser curvature; the rest are located in the fundus, particularly along the greater curvature. Although this form of cancer is common throughout the world in people of all races, the incidence…
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Gastric canal
A longitudinal groove on the inner surface of the stomach following the lesser curvature. It extends from the esophagus to the pylorus.