Medications

Gingivitis, fusospirillary: This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead tissue from the mouth and throat due to the spread of infection from the gums. Certain germs (including fusi...

Gingivitis, acute necrotizing ulcerative (ANUG) - Medical

Gingivitis, acute necrotizing ulcerative (ANUG): This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead tissue from the mouth and throat due to the spread of infection from the gums. Certain...

Gingivitis, acute membranous - Medical

Gingivitis, acute membranous: This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead tissue from the mouth and throat due to the spread of infection from the gums. Certain germs (including f...

Gingivitis - Medical

Gingivitis: Gum disease with inflammation of the gums. On inspection, the gums will appear red and puffy, and will usually bleed during tooth-brushing or dental examination. Treatment is by improved cleaning, with more-frequent and longer brush...

Gingiva - Medical

Gingiva: The gum. Last Editorial Review: 4/27/2011 5:27:15 PM...

Ginger - Medical

Ginger: A perennial tropical herb that has been used as a treatment for nausea and bowel spasms. Ginger may lead to blood thinning. It is therefore best not taken with medications that prevent blood clotting (anticoagulants) such as warfarin (Coum...

Gilbert syndrome - Medical

Gilbert syndrome: A common, harmless genetic condition in which a liver enzyme essential to the disposal of bilirubin (the chemical that results from the normal breakdown of hemoglobin from red blood cells) is abnormal. The abnormality is caus...

Gigantism, pituitary - Medical

Gigantism, pituitary: Excessive growth and height due to chronic overactivity of the pituitary gland (at the base of the brain). ( Growth hormone is specifically made by the anterior pituitary gland.) In pituitary gigantism, there is secretion of too...

GIFT - Medical

GIFT: A technique in which the male and female cells required to begin reproduction are injected into the fallopian tubes of the female for fertilization. This technique is one of the methods doctors use to overcome infertility, the inability of coup...

Gibbon, John H., Jr. - Medical

Gibbon, John H., Jr.: American cardiovascular surgeon (1903-1973) who performed the world's first successful open-heart operation using a heart-lung machine that totally bypassed the heart. Research and work with cats and dogs prepared the heart-lung...

Gibbon heart-lung machine - Medical

Gibbon heart-lung machine: The first heart-lung machine. Named for the American physician John H. Gibbon who built it in 1937. This machine used two roller pumps and could replace the heart and lungs of a cat but was too small for dogs or humans. Gib...

Gibbon - Medical

Gibbon: See: Gibbon, John H., Jr. Last Editorial Review: 7/19/2004 Gibbon, John H., Jr.: American cardiovascular surgeon (1903-1973) who performed the world's first successful open-heart operation using a heart-lung machine that totally bypassed ...

Giardiasis - Medical

Giardiasis: Infection with Giardia lamblia.Last Editorial Review: 8/3/2003 Giardia lamblia: A parasite responsible for a contagious form of diarrhea. The parasite is most commonly transmitted through direct contact with infected feces or by eatin...

Giardia lamblia - Medical

Giardia lamblia: A parasite responsible for a contagious form of diarrhea. The parasite is most commonly transmitted through direct contact with infected feces or by eating food or drinking water contaminated by feces. Giardia is one of the most c...

Giardia - Medical

Giardia: A genus of protozoa that infect the gastrointestinal tract of some animals, including humans. Giardia have a large sucking disk which permits them to adhere to the intestinal lining. The species that infects humans (and causes diarrhea) is ...

Giant platelet syndrome - Medical

Giant platelet syndrome (Bernard-Soulier syndrome):This condition is a primary problem of platelets in which the platelets lack the ability to stick adequately to injured blood vessel walls and as a result of this problem there is abnormal ...

Giant intestinal fluke - Medical

Giant intestinal fluke: Fasciolopsis buski. See: Fasciolopsis.Last Editorial Review: 3/14/2004 Fasciolopsis: A parasite that is the largest intestinal fluke in humans. Known scientifically as Fasciolopsis buski and popularly as the giant intestinal...

Giant hypertrophy of gastric mucosa - Medical

Giant hypertrophy of gastric mucosa: See: Giant hypertrophic gastritis.Last Editorial Review: 2/18/2004 Giant hypertrophic gastritis: A premalignant disorder of the stomach characterized by overgrowth of the stomach lining (the gastric mucosa) and...

Giant hypertrophic gastritis - Medical

Giant hypertrophic gastritis: A premalignant disorder of the stomach characterized by overgrowth of the stomach lining (the gastric mucosa) and hypoalbuminemia (low blood serum level of albumin) due to loss of albumin by the stomach. The abnormaliti...

Giant cell tumor, malignant - Medical

Giant cell tumor, malignant: A type of bone tumor characterized by massive destruction of bone near the end (epiphysis) of a long bone. The site most commonly struck by this tumor is the knee -- the far end of the femur and the near end of the tibia....

Giant cell tumor of bone - Medical

Giant cell tumor of bone: A tumor of bone characterized by massive destruction of the end (epiphysis) of a long bone. The site most commonly struck by this tumor is the knee -- the far end of the femur and the near end of the tibia. The tumor is ofte...

Giant cell pneumonia - Medical

Giant cell pneumonia: Also known as Hecht's pneumonia, this is a deadly but fortunately rare complication of measles. It tends to strike children who are immunodeficient as from leukemia or HIV/AIDS. The postmortem examination (autopsy) shows multi...

Giant cell arteritis - Medical

Giant cell arteritis: A serious disease characterized by inflammation of the walls of the blood vessels ( vasculitis). The vessels affected by the inflammation are the arteries (hence the name "arteritis"). The age of affected patients i...

GI tract - Medical

GI tract: Short for gastrointestinal tract. See: Gastrointestinal tract.Last Editorial Review: 4/27/2011 5:27:15 PM Gastrointestinal tract: The tube that extends from the mouth to the anus in which the movement of muscles and release of hormones and...

GI - Medical

GI: 1. In medicine, commonly used abbreviation for gastrointestinal, referring collectively to the stomach and the small and large intestine. 2. Outside of medicine, GI may stand for galvanized iron, general issue or government issue (as in GI Joe...

GHB - Medical

GHB: Known in Europe as Gamma-OH, this is gamma hydroxybutyrate, a colorless and odorless drug used illicitly for "recreational" purposes and for "date rape." GBH is a central nervous system depressant. It tends therefore to increase sociability and ...

GFP - Medical

GFP: Green fluorescent protein.Last Editorial Review: 11/11/2004 Green fluorescent protein: Abbreviated GFP. A protein that glows green under fluorescent light. Found naturally in the jellyfish Aequorea victoria, GFP fluoresces green when exposed to...

GFAP - Medical

GFAP: Glial fibrillary acidic protein. The degenerative brain condition called Alexander disease is caused by mutation in GFAP (glial fibrillary acidic protein). The GFAP gene provides instructions for making GFAP protein, a member of the intermedia...

Gesundheit - Medical

Gesundheit: Interjection used to wish "good health," especially to someone who has sneezed. In this situation, Gesundheit is roughly equivalent to "God bless you." In German "Gesundheit" means "health" (and "sanity"). Wishing "good health" was on...

Gestational hypertension - Medical

Gestational hypertension: See: Hypertension, gestational.Last Editorial Review: 4/21/2003 Hypertension, gestational: High blood pressure that develops during pregnancy and may subside after delivery. Women who have experienced gestational hypertensi...