Category: D
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Deciduate
To shed the decidua (lining) of the uterus.
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Decidua parietalis
The endometrium during pregnancy except at the site of the implanted blastocyst.
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Decidua menstrualis
The layer of the uterine endometrium that is shed during menstruation.
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Decidua capsularis
The part of the decidua that surrounds the chorionic sac.
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Decidua basalis
The part of the decidua that unites with the chorion to form the placenta. The segment of the uterine lining located directly beneath the implanted fertilized egg.
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Dechloridation
Reduction in the amount of chlorides in the body by reduction of or withdrawal of salt in the diet.
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Decerebrate posture
The rigid body position assumed by a patient who has lost cerebral control of spinal reflexes, usually as a result of an intracranial catastrophe. The patient’s arms are stiff and extended, the forearms are pronated, and the deep tendon reflexes exaggerated.
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Decennial
Occurring every tenth year. Some booster vaccinations, e.g., against tetanus and diphtheria, were traditionally administered one decade after the prior dose.
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Deceleration injury
An injury in which a moving body hits a stationary object, for example, when a falling patient lands on the ground.
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Deceleration
A rapid decrease in velocity. A decline in the fetal heart rate, serving as a potential indication of insufficient blood circulation through the placenta.