gamma

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γ

 
gamma, the third letter of the Greek alphabet, often used to indicate the third member of a series, such as the γ chain of hemoglobin. See also terms beginning gamma.

gamma

 [gam´ah]
the third letter of the Greek alphabet, γ, used in names of chemical compounds to distinguish one of three or more isomers or to indicate the position of substituting atoms or groups.
gamma chain disease a type of heavy chain disease that resembles a malignant lymphoma, with symptoms of lymphadenopathy, hepatosplenomegaly, and recurrent infections.
gamma globulin
1. a class of plasma proteins composed almost entirely of immunoglobulins, the proteins that function as antibodies. Production of gamma globulin may be increased in the body when there is invasion by harmful microorganisms. An abnormal amount in the blood, a condition known as hypergammaglobulinemia, may be indicative of a chronic infection or certain malignant blood diseases. There is also a rare condition, agammaglobulinemia, in which the body is unable to produce gamma globulin; patients suffering from this are extremely susceptible to infection and must be given frequent injections of gamma globulin serum.
gamma rays (γ-rays) electromagnetic emissions from radioactive substances; they are similar to and have the same general properties as x-rays but are produced through the disintegration of certain radioactive elements. They consist of high energy photons, have short wavelengths, and have no mass and no electric charge. Gamma rays are sometimes used in the treatment of deep-seated malignancies (see radiation therapy).
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

γ

1. Third letter in the Greek alphabet, gamma.
2. In chemistry, denotes the third in a series, the fourth carbon in an aliphatic acid, or position 2 removed from the α position in the benzene ring.
3. Symbol for 10-4 gauss; surface tension; activity coefficient; microgram.
4. Symbol for photon. For terms having this prefix, see the specific term.

gam·ma

(gam'ă),
1. Third letter of the Greek alphabet, γ.
2. A unit of magnetic field intensity equal to 10-9 T.
[G.]
Farlex Partner Medical Dictionary © Farlex 2012

gamma

(1) Microgram; 10-6g. 
(2) An obsolete, non-SI (International System) unit of magnetic field strength equal to 0.795/0.775 ampere/m.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

gamma

γ Symbol for:
1. Heavy chain of immunoglobulin G–IgG.
2. Hemoglobin monomeric chain.
3. Photon.
4. The 3rd carbon in an aliphatic organic molecule Genetics A value calculated by the ratio between synonymous DNA mutations, which don't result in a different amino acid being translated from a codon, and nonsynonymous mutations–which result in a different amino acid being encoded Imaging A measure of contrast 1. Film–The slope of the density vs. exposure curve 2. Electronic display terminology–The slope of the brightness distribution curve; a large gamma indicates a steep slope and high contrast.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

γ

Abbreviation for activity coefficient;
gamma;
photon.

γ

1. Gamma (q.v.).
2. Abbreviation for activity coefficient; surface tension.

gam·ma

(γ) (gam'ă)
1. Third letter in the Greek alphabet.
2. chemistry The third in a series, the fourth carbon in an aliphatic acid, or position 2 removed from the α position in the benzene ring.
3. Symbol for 10-4 gauss.
4. For terms with the prefix γ, see the specific term.
[G.]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

gamma

The third letter of the Greek alphabet. Often used in medicine to denote a particular class.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

gamma

(y) radiation electromagnetic radiation of shorter wavelength and higher energy than X-RAYS. See ELECTROMAGNETIC SPECTRUM.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

γ

Third letter in the Greek alphabet, gamma; photon.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Pour les soutenir dans leur activite, R-M propose a ses clients une gamme complete de services.
He went back there last November for a crack at the Becher Chase and finished a close fifth to the Irish-trained Garvivonnian and Murphy believes Haut de Gamme will turn the tables on his conqueror at the revised weights.
La gamme entiere etant equipee de processeurs plus puissants, les clients beneficieront de performances nettement accrues dans toutes leurs taches quotidiennes, qu'il s'agisse de retoucher des photos, de jouer aux jeux les plus exigeants, de composer de la musique ou encore de monter des films.
Mais la crainte des matieres grasses en Europe et aux Etats-Unis a egalement encourage l'elaboration de gammes a faible teneur en matieres grasses.
Mercer overlooked the claims of Haut de Gamme's stable-mate Joes Edge, on whom he had his biggest victory in the saddle in the Scottish Grand National at Ayr 12 months ago, to stick with a horse who is tried and tested over the Aintree fences.
Haut De Gamme (25-1) threw down a strong challenge, but Cregg House pulled out that vital bit more to hold off Keith Mercer's mount by a length, with the staying-on Le Duc (20-1) another five lengths back in third.
A real mud-lover Haute De Gamme will think he's arrived at his spiritual home here and you cannot doubt the much shorter trip will suit.
Son design soigne et de qualite lui confere un caractere haut de gamme s'inscrivant parfaitement dans la montee en gamme de la marque Peugeot.
[beaucoup moins que] Pour peu que des mesures de facilitation soient edictees par les pouvoirs publics [beaucoup plus grand que], disent-ils Selon le representant de Nadpharmamadic, Touabia, le laboratoire est deja entre en production d'une importante gamme de medicaments, depuis 2010, et ce, apres avoir, trois ans plus tot, ete le representant de plusieurs marques.