| DEAFNESS, CONDUCTIVE: |
Due to impairment in conduction of sound waves through the bones and structures in the middle and outer ear. |
| DEAFNESS, CORTICAL: |
Central deafness. |
| DEAFNESS, SENSORINEURAL: |
A type of hearing impairment that is caused by damage in the inner ear or nerve pathways to the brain (cochlear hair cells or auditory nerve damage). Certain sounds are heard less distinctly than others, causing distortion and reduced understanding of speech. The aging process, heredity, birth defects, certain drugs, head injury, tumors, and exposure to loud noise can all lead to this type of hearing loss. While this kind of hearing loss is usually not medically correctable, people with sensorineural hearing loss can often be helped by using a hearing aid or other amplification device. |
| DEEP VEIN THROMBOSIS: |
A blood clot in the deep veins of the leg. |
| DELINEATED: |
Outlined. |
| DENTITION: |
The type, number, and arrangement of teeth. |
| DEOXYRIBONUCLEIC ACID (D.N.A.): |
A substance found in the nucleus of cells that carries genetic information. |
| DERMATOLOGIST: |
A doctor who specializes in the diagnosis and treatment of skin problems. |
| DERMIS: |
The lower or inner layer of the two main layers that make up the skin. |
| DIAGNOSIS: |
Identification of a disease or disorder. |
| DIALYSIS: |
Technique of removing waste and toxins from the blood, used primarily when the kidneys malfunction or in cases of overdose of a drug. The two types of dialysis are: hemodialysis and peritoneal dialysis. In hemodialysis, the patient's blood is passed through a tube into a machine that filters out waste products. The cleansed blood is then returned to the body. In peritoneal dialysis, a special solution is run through a tube into the peritoneum, a thin tissue that lines the cavity of the abdomen. The body's waste products are removed through the tube. There are three types of peritoneal dialysis. Continuous ambulatory peritoneal dialysis (CAPD), the most common type, needs no machine and can be done at home. Continuous cyclic peritoneal dialysis (CCPD) uses a machine and is usually performed at night when the person is sleeping. Intermittent peritoneal dialysis (IPD) uses the same type of machine as CCPD, but is usually done in the hospital because treatment takes longer. |
| DIAPHRAGM: |
The thin muscular partition below the lungs and heart that separates the chest cavity from the abdominal cavity. |
| DIARRHEA: |
A condition in which fecal matter is discharged from the bowel more often than usual and in a more or less liquid state. |
| DIFFUSE: |
Spread about and not limited to a specific area. |
| DIGIT: |
A finger or toe. |
| DIPLEPIA: |
Paralysis that affects both sides of the body, due to injury of both hemispheres of the brain. More commonly affects the legs more than the arms. |
| DIPLOPIA: |
Double vision. |
| DISTAL: |
Farthest from one point of reference/the midline of the body. |
| DORSAL: |
The back of a body part, with reference to the standard anatomical convention. |
| DOMINANT: |
A mode of inheritance in which only a gene from one parent is required for a trait to appear in an offspring. |
| DOUBLE HEMIPLEGIA: |
Paralysis that involves both sides of the body, with one side being more greatly affected. |
| DUCT: |
A channel that carries body fluids. Breast ducts transport milk from the breast's lobules out to the nipple. |
| DUCTUS ARTERIOSIS: |
An artery that allows blood in the fetus to bypass the lungs until the lungs expand at birth. It normally closes soon after birth. |
| DUE DATE: |
The estimated calendar date when your baby will be born. It is also called the estimated date of confinement (EDC) |
| DURA MATER: |
The tough outer membrane covering the brain and spinal cord. |
| DYSETHESIA: |
Unpleasant sensation that is produced in response to normal stimuli. |
| DYSGENESIS: |
Impaired or faulty development. |
| DYSKINESIA: |
A physical condition caused by partial impairment of the coordination of voluntary muscles, which results in obvious clumsy movements and poor physical control. |
| DYSMORPHIC: |
A deformity. |
| DYSOSTOSIS: |
Defective formation of bone. |
| DYSPHAGIA: |
Difficult or painful swallowing. |
| DYSPLASIA: |
Failure to develop. |
| DYSPRAXIA: |
Inability to perform coordinated movements, especially speech, with no apparent problem in the muscles or nerves. |
| DYSTOMIA: |
Abnormally small mouth. |
| DYSTONIA: |
Acute tonic muscular spasms, often of the tongue, jaw, eyes, and neck, but sometimes of the whole body. Sometimes occurs during the first few days of antipsychotic drug administration. |
| DYSTROPHIC: |
Not in the right place. |
| DYSTROPHY: |
A disorder, usually congenital, of the structure or functions of an organ or tissue. |
