Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «G»:
Germ cell tumor
Germ cell tumor: A tumor that arise from a germ cell. These tumors may arise within the gonads -- the ovary and testis. Most testicular tumors are, in fact, germ cell tumors. Germ cell tumors also occur in sites outside the gonads, reflecting the fact that germ cells travel to diverse areas of the ...
Germ line: 1. The sequence of cells which develop into eggs and sperm. 2. Inherited material that comes from the eggs or sperm and is passed on to offspring....
German disease: Syphilis. Depending upon someone's thoughts as to where the disease came from, syphilis was also known as the French, Italian, Spanish and Polish disease....
German measles (historical note)
German measles (historical note): In 1941 N. M. Gregg, an Australian ophthalmologist, recognized that infection of the mother with German measles (rubella) during early pregnancy could
malform an embryo and cause a characteristic syndrome of congenital malformations. The first feature Dr. Greeg not...
German measles immunization
German measles immunization: The standard
MMR vaccine is given to prevent measles, mumps and rubella (German measles). The
MMR vaccine is now
given in two dosages. The first should be given at 12-15 months of
age. The second vaccination should be given at 4-6 years. Most
children should receive...
German measles vaccine
German measles vaccine: A vaccine designed to prevent rubella, or German measles.
German measles was once seen merely as a child's unpleasant rite of passage. It was thought to be a mild malady that was usually over and done in three days. So what?
Then an outbreak of rubella began in 1964. It la...
Germanium: A nonessential trace element that has caused nephrotoxicity (kidney injury) and death when used chronically by humans, even at recommended levels of use. The U.S. Food & Drug Administration (the FDA) warns that products containing germanium have been "labeled for drug use (e.g., with...
Germinoma: A type of germ cell tumor. ...
Germline mutation: A heritable change in the DNA that occurred in a germ cell (a cell destined to become an egg or in the sperm) or the
zygote (the conceptus) at the single-cell stage. When transmitted to a child, a germline mutation is incorporated in every cell of their body.
Germline mutations ...
Gerstmann-Sträussler disease: See: Gerstmann-Sträussler-Scheinker syndrome....
Gerstmann-Sträussler syndrome: See: Gerstmann-Sträussler-Scheinker syndrome....
Gerstmann-Sträussler-Scheinker disease: See: Gerstmann-Sträussler-Scheinker syndrome....
Gerstmann-Sträussler-Scheinker syndrome: A rare familial form of progressive dementia inherited in an autosomal dominant manner due to a mutant prion gene on chromosome 20pter-p12. Abbreviated GSS.
Degeneration of the nervous system usually starts in the fourth or fifth decade of life with sl...
Gertie F. Marx
Gertie F. Marx: See: Marx, Gertie F....
Gesell Developmental Schedules
Gesell Developmental Schedules: A measure of child development devised by the American child psychologist and pediatrician Arnold Gesell (1880-1961) who founded the Clinic of Child Development at Yale in 1911 and directed it for many years. There he pioneered the use of motion-picture cameras to stu...