Gravity
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  Gravity



Gravity

   Acceleration produced by the mutual attraction of two masses, and of magnitude inversely proportional to the square of the distance between the two centers of mass. It is also the force imparted by the earth, moon, or a planet to an object near its surface. (From NASA Thesaurus, 1988)

RELATED TERMS
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Distance
The degree to which individuals are inhibited or facilitated in their ability to gain entry to and to receive care and services from the health care system. Factors influencing this ability include geographic, architectural, transportational, and financial considerations, among others.



SIMILAR TERMS
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Gravatai doctors
All doctors near Gravatai, Brazil. Doctors who can assist a patient in Gravatai.

Grave Disease
Hyperthyroidism associated with a diffuse hyperplastic goiter resulting from production of an antibody directed against the thyroid-stimulating hormone (TSH) receptor, which acts as an agonist of TSH. (Braverman, The Thyroid, 6th ed, p648)

Grave Robberies
The stealing of corpses after burial, especially for medical dissection. In the late 18th and early 19th centuries, in the absence of laws governing the acquisition of dissecting material for the study of anatomy, the needs of anatomy classes were met by surreptitious methods: body-snatching and grave robbing. The infamous practice of ""burking"", murder to procure bodies for dissection, was given the name of a rascal named W. Burke, hanged in Edinburgh in 1829. (Random House Unabridged Dictionary, 2d ed; from Garrison, An Introduction to the History of Medicine, 4th ed, p447; from Castiglioni, A History of Medicine, 2d ed, p676)

Grave Robbery
The stealing of corpses after burial, especially for medical dissection. In the late 18th and early 19th centuries, in the absence of laws governing the acquisition of dissecting material for the study of anatomy, the needs of anatomy classes were met by surreptitious methods: body-snatching and grave robbing. The infamous practice of ""burking"", murder to procure bodies for dissection, was given the name of a rascal named W. Burke, hanged in Edinburgh in 1829. (Random House Unabridged Dictionary, 2d ed; from Garrison, An Introduction to the History of Medicine, 4th ed, p447; from Castiglioni, A History of Medicine, 2d ed, p676)

Grave Robbing
The stealing of corpses after burial, especially for medical dissection. In the late 18th and early 19th centuries, in the absence of laws governing the acquisition of dissecting material for the study of anatomy, the needs of anatomy classes were met by surreptitious methods: body-snatching and grave robbing. The infamous practice of ""burking"", murder to procure bodies for dissection, was given the name of a rascal named W. Burke, hanged in Edinburgh in 1829. (Random House Unabridged Dictionary, 2d ed; from Garrison, An Introduction to the History of Medicine, 4th ed, p447; from Castiglioni, A History of Medicine, 2d ed, p676)

Graves Disease
Graves-Basedow disease is an autoimmune disorder that stimulates the thyroid gland, being the most common cause of hyperthyroidism (overactivity of the thyroid). Also known in the English-speaking world simply as Graves' disease, it occurs most frequently in women (8:1 compared to men) of middle age. Symptoms include fatigue, weight loss and rapid heart beat. Because similar antibodies to those stimulating the thyroid also affect the eye, eye symptoms are also commonly reported.

Graves-Basedow Disease
See Graves Disease.

Gravida
The medical term for a pregnant woman.

Gravidarum, Chorea
A rare disorder characterized by the development of chorea, athetosis, and/or hemiballismus during pregnancy. RHEUMATIC FEVER and collagen vascular disorders are frequently associated with this disease. Chorea may vary from mild to severe and occurs in approximately 1 per 2,000 to 3,000 pregnancies. (From Md Med J 1997 Sep;46(8):436-9)

Gravidities
The number of pregnancies, complete or incomplete, experienced by a female. It is different from PARITY, which is the number of offspring borne. (From Stedman, 26th ed)

Gravidity
The number of pregnancies, complete or incomplete, experienced by a female. It is different from PARITY, which is the number of offspring borne. (From Stedman, 26th ed)

Gravisensing
Process whereby a bodily structure or organism (animal or plant) receives or detects a gravity stimulus. The sensing may be direct or indirect and may or may not initiate a reaction to the stimulus.

Gravisensings
Process whereby a bodily structure or organism (animal or plant) receives or detects a gravity stimulus. The sensing may be direct or indirect and may or may not initiate a reaction to the stimulus.

Gravistat
Ethinyl Estradiol and Norgestrel given in fixed proportions. It has proved to be an effective contraceptive.

Gravistimulation
Acceleration produced by the mutual attraction of two masses, and of magnitude inversely proportional to the square of the distance between the two centers of mass. It is also the force imparted by the earth, moon, or a planet to an object near its surface. (From NASA Thesaurus, 1988)

Gravitation
Acceleration produced by the mutual attraction of two masses, and of magnitude inversely proportional to the square of the distance between the two centers of mass. It is also the force imparted by the earth, moon, or a planet to an object near its surface. (From NASA Thesaurus, 1988)

Gravities
Acceleration produced by the mutual attraction of two masses, and of magnitude inversely proportional to the square of the distance between the two centers of mass. It is also the force imparted by the earth, moon, or a planet to an object near its surface. (From NASA Thesaurus, 1988)

Gravitropism
The directional growth of organisms in response to gravity. In plants, the main root is positively gravitropic (growing downwards) and a main stem is negatively gravitropic (growing upwards), irrespective of the positions in which they are placed. Plant gravitropism is thought to be controlled by auxin (AUXINS), a plant growth substance. (From Concise Dictionary of Biology, 1990)

Gravitropisms
The directional growth of organisms in response to gravity. In plants, the main root is positively gravitropic (growing downwards) and a main stem is negatively gravitropic (growing upwards), irrespective of the positions in which they are placed. Plant gravitropism is thought to be controlled by auxin (AUXINS), a plant growth substance. (From Concise Dictionary of Biology, 1990)

Gravity Perception
Process whereby a bodily structure or organism (animal or plant) receives or detects a gravity stimulus. The sensing may be direct or indirect and may or may not initiate a reaction to the stimulus.

Gravity Sensing
Process whereby a bodily structure or organism (animal or plant) receives or detects a gravity stimulus. The sensing may be direct or indirect and may or may not initiate a reaction to the stimulus.

Gravity, Altered
A change in, or manipulation of, gravitational force. This may be a natural or artificial effect.

Gravity, Artificial
A change in, or manipulation of, gravitational force. This may be a natural or artificial effect.

Gravity, High
Condition wherein the force of gravity is greater than or is increased above that on the surface of the earth. This is expressed as being greater than 1 g.

Gravity, Increased
Condition wherein the force of gravity is greater than or is increased above that on the surface of the earth. This is expressed as being greater than 1 g.

Gravity, Low
Condition wherein the force of gravity is less than or is decreased below that on the surface of the earth. This is expressed as being between 0 and 1 g.

Gravity, Reduced
Condition wherein the force of gravity is less than or is decreased below that on the surface of the earth. This is expressed as being between 0 and 1 g.

Gravity, Zero
Condition in which no acceleration, whether due to gravity or any other force, can be detected by an observer within a system. It also means the absence of weight or the absence of the force of gravity acting on a body. Microgravity, gravitational force between 0 and 10 -6 g, is included here. (From NASA Thesaurus, 1988)

Gravosan
A triphenyl ethylene stilbene derivative which is an estrogen agonist or antagonist depending on the target tissue.



PREVIOUS AND NEXT TERMS
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Gravity, Low
Condition wherein the force of gravity is less than or is decreased below that on the surface of the earth. This is expressed as being between 0 and 1 g.

Gravity, High
Condition wherein the force of gravity is greater than or is increased above that on the surface of the earth. This is expressed as being greater than 1 g.

Gravity, Altered
A change in, or manipulation of, gravitational force. This may be a natural or artificial effect.

Gravity Sensing
Process whereby a bodily structure or organism (animal or plant) receives or detects a gravity stimulus. The sensing may be direct or indirect and may or may not initiate a reaction to the stimulus.

Gravity Perception
Process whereby a bodily structure or organism (animal or plant) receives or detects a gravity stimulus. The sensing may be direct or indirect and may or may not initiate a reaction to the stimulus.

Gravity

Gravitropisms
The directional growth of organisms in response to gravity. In plants, the main root is positively gravitropic (growing downwards) and a main stem is negatively gravitropic (growing upwards), irrespective of the positions in which they are placed. Plant gravitropism is thought to be controlled by auxin (AUXINS), a plant growth substance. (From Concise Dictionary of Biology, 1990)

Gravitropism
The directional growth of organisms in response to gravity. In plants, the main root is positively gravitropic (growing downwards) and a main stem is negatively gravitropic (growing upwards), irrespective of the positions in which they are placed. Plant gravitropism is thought to be controlled by auxin (AUXINS), a plant growth substance. (From Concise Dictionary of Biology, 1990)

Great Horned Owl
Members of the Strigiformes order of birds, with strongly hooked beaks, sharp talons, large heads, forward facing eyes, and facial disks. While considered nocturnal raptors, some owls do hunt by day.

Greasy Pig Disease
An acute generalized dermatitis of pigs which occurs from 5 to 35 days of age, characterized by sudden onset, with morbidity of 10 to 90% and mortality of 5 to 90%. The lesions are caused by Staphylococcus hyos but the bacterial agent is unable to penetrate the intact skin. Abrasions on the feet and legs or lacerations on the body frequently precede infection. In acute cases, a vesicular-type virus may be the predisposing factor. The causative organism is inhibited by most antibiotics. (Merck Veterinary Manual, 5th ed)

Grays, Periaqueductal
Central gray matter surrounding the cerebral aqueduct in the mesencephalon. Physiologically it is probably involved in rage reactions, the lordosis reflex, feeding responses, bladder tonus, and pain.

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