Cochlear implant: A device that is surgically placed (implanted) within the inner ear to help a person with a certain form of deafness to hear. Cochlear implants rarely cure severe or profound deafness, but they can help some hearing-impaired people to distinguish the sounds of language clearly enough to participate in a verbal environment. For children who are congenitally deaf (born deaf), a cochlear implant can markedly increase a preschool child’s chances of being able to function effectively in mainstream school classes.
- Cockayne syndrome
Cockayne syndrome: A genetic disorder that involves progressive multisystem degeneration and is classified as a segmental premature-aging syndrome. Cockayne syndrome is characterized by dwarfism, prematurely aging, visual problems and deafness, sensitivity to sunlight, and mental retardation. Cockayne syndrome is a transcription- and DNA repair deficiency syndrome. The syndrome arises from mutations in the CSA and […]
- Cockroach allergy
Cockroach allergy: A condition that manifests as an allergic reaction when one is exposed to tiny particles from cockroaches. Asthma can be due to exposure to cockroach allergens (allergy-provoking substances). These substances are the proteins shed or excreted by the cockroaches. In a study reported in the Journal of Allergy and Clinical Immunology (1999;103:501-506), the […]
- Cod liver oil
Cod liver oil: An oil extracted from the liver of the cod. Cod liver oil was once given religiously to children every day as a rich source of vitamins A and D. It was also used to treat children with rickets, a bone disease due to vitamin D deficiency. Cod liver oil is now known […]
Code: The genetic code is the correspondence between the triplet of bases in DNA with the amino acids. The discovery of the genetic code clearly ranks as one of the premiere events of what has been called the Golden Age of Biology (and Medicine).
- Code Black: Click for the Medical Definition
Code black: While there is no formal definition for a “Code,” doctors often use the term as slang to refer to a patient in cardiopulmonary arrest , requiring a team of providers (sometimes called a “code team”) to rush to the specific location and begin immediate resuscitative efforts. The term “Code” derives from the practice […]