Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «T»:
Trachoma: A chronic inflammatory eye disease due to infection with a bacterium called Chlamydia trachomatis. Trachoma results in blindness so frequently that it places a huge burden a year on world health funding. The disease goes by a number of names such as sandy blight.
The transmission of t5he ...
Traction: In medicine, a procedure for manually
pulling a part of the body to a beneficial effect. See
Traction, orthopedic: The use of a system
of weights and pulleys to gradually change the position of
a bone. It may be used in cases of bone injury or
congenital defect, to prevent scar tissue from building up
in ways to limit movement, and to prevent contractures in
disorders such as cerebral...
Traditional Chinese medicine
Traditional Chinese medicine: The current name for an ancient system of health care from China. Traditional Chinese medicine (TCM) is based on a concept of balanced qi (pronounced "chee"), or vital energy, that is believed to flow throughout the body. Qi is proposed to regulate a person's spiritual,...
Traditional midwife: A direct-entry midwife
practicing within the confines of traditional folk
medicine. Traditional midwives are now very rare in the US,
but preside over the majority of births in many other
countries. Most have no formal medical training, but
instead learned as an apprentice ...
Traditional oriental medicine
Traditional oriental medicine:
This is a sophisticated form of medicine comprised of
many systematic techniques and methods, including
acupuncture, herbal medicine, acupressure, qi gong, and
oriental massage. The most striking characteristic of
oriental medicine is its emphasis on diagnosing
Training, cross: Doing two or more aerobic activities such as jogging, bicycling, and swimming on a regular basis....
Trait: In genetics, a trait refers to any genetically determined characteristic. In technical terms, a genetic trait is amenable to segregation analysis rather than quantitative analysis.
A dominant lethal trait is a trait that is expressed if present in the genome and therefore precludes having des...
Trait, dominant lethal
Trait, dominant lethal: A genetic trait that, if present in the genome of the individual, is expressed and therefore precludes the individual's having descendants. All such cases with a dominant lethal trait must necessarily be sporadic and must represent new mutations, not inherited ones because a ...
Trait, sickle cell
Trait, sickle cell: A person who possess one copy of the gene for sickle cell anemia. This person carries the gene but does not have the disease. If two people with sickle cell trait have children together, each of their children has a one in four chance (25%) of having sickle cell disease.
Tranquilizer: In pharmacology, a drug that calms and
relieves anxiety. The first tranquilizer,
chlordiazepoxide hydrochloride (brand name: Librium) received FDA
approval in 1960. Tranquillizers range in potency from mild to
major, with increasing levels of drowsiness occurring as potency
Trans fat: An unhealthy substance, also known as trans fatty acid, made through the chemical process of hydrogenation of oils. Hydrogenation solidifies liquid oils and increases the shelf life and the flavor stability of oils and foods that contain them. Trans fat is found in vegetable shortenings a...
Trans fatty acid
Trans fatty acid: An unhealthy substance, also known as trans fat, made through the chemical process of hydrogenation of oils. Hydrogenation solidifies liquid oils and increases the shelf life and the flavor stability of oils and foods that contain them. Trans fat is found in vegetable shortenings a...
Trans- (prefix): From the Latin meaning
"across, over, or beyond." Medical terms containing "trans-
" as a prefix include transcription, transfusion,
transplant, transsexual, transurethral, transvaginal,
transvestism, etc. ...
Transaminase biochemistry: The
transaminases are enzymes that catalyze chemical reactions
in the body in which an amino group is transferred from a
donor molecule to a recipient molecule. Hence, the name
"transferase" can be applied to the transaminases because
these enzymes facilitate a mol...