D (domain): Abbreviation for domain, a discrete portion of a protein with its own function. The combination of domains in a single protein determines its overall function.
- D & C
D & C: Dilatation and curettage, a minor operation in which the cervical canal is expanded enough (dilatation) to permit the cervical canal and uterine lining to be scraped with a small spoon-shaped instrument called a curette (curettage).
Deltoid: The muscle, roughly triangular in shape, that stretches from the collarbone (clavicle) over the shoulder to the upper bone of the arm (humerus). It contracts to move the arm up from the side.
- Delusional parasitosis
Delusional parasitosis: A mistaken belief that one is infested by parasites such as mites, lice, fleas, spiders, worms, or other organisms. See also: Parasitosis, Morgellon’s disease.
Demarcation: A setting of limits; a boundary; marking the limits of, delimiting; setting apart, separating. The word “demarcation” is used in medicine mainly in the sense of determining and marking off boundaries. For example, the surface demarcation in respect to damaged tissue can refer to the boundary between the living tissue and the necrotic (dead) […]
Significant loss of intellectual abilities, such as memory capacity, that is severe enough to interfere with social or occupational functioning. Criteria for the diagnosis of dementia include impairment of attention, orientation, memory, judgment, language, motor and spatial skills, and function. By definition, dementia is not due to major depression or schizophrenia. Alzheimer’s disease is the […]