Category: D
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Direct current
A current that flows in one direction only, used medically for cardioversion and defibrillation of dysrhythmias. Constant, even-flowing current that travels in one direction only and is produced by chemical means. An electrical phenomenon characterized by the unidirectional movement of electric charges is referred to as direct current (DC). This particular type of current is…
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Dental crypt
A space in the bony jaw occupied by a developing tooth.
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Dry cough
A cough unaccompanied by sputum production.
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Diphtherial cough
A cough heard in laryngeal diphtheria. It is noisy and brassy, and breathing is stridulous.
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Disabled family coping
A state in which the behavior of a significant person (family member or other primary person) disables his or her own capacities and the patient’s capacities to effectively address tasks essential to either person’s adaptation to the health challenge.
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Defensive coping
The state in which an individual repeatedly projects a falsely positive self-evaluation based on a self-protective pattern that defends against underlying perceived threats to positive self-regard.
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Dentate convolution
A small, notched gyrus, rudimentary in humans, situated in the dentate fissure.
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Disintegration of consciousness
In classic psychoanalysis, disorganization of the personality. It is produced by the contents of the unconscious gradually disrupting the conscious.
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Diagonal conjugate
The distance between the sacral promontory and the lower inner surface of the symphysis pubis, usually more than 4.52 in (11.5 cm).
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Decisional conflict
The state of uncertainty about the course of action to be taken when choice among competing actions involves risk, loss, or challenge to personal life values.