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gamma Definition
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gamma
noun(gam-ma)the 3rd letter of the Greek alphabet
gamma
noun(gam-ma)the degree of contrast of a developed photographic image or of a video image
gamma
noun(gam-ma)a unit of magnetic flux density equal to one nanotesla
gamma
adjective(gam-ma)of, relating to, or being one of three or more closely related chemical substances
gamma
adjective(gam-ma)third in position in the structure of an organic molecule from a particular group or atom —symbol γ
gamma
noun(gam-ma)an amino acid C4H9NO2 that is a neurotransmitter which induces inhibition of postsynaptic neurons
gamma
noun(gam-ma)a camera that detects the radiation from a radioactive tracer injected into the body and is used especially in medical diagnostic scanning
gamma
noun(gam-ma)a protein fraction of blood rich in antibodies
gamma
noun(gam-ma)a sterile solution of gamma globulin from pooled human blood administered especially for passive immunity against measles, German measles, infectious hepatitis, or polio
gamma
noun(gam-ma)ghb
gamma
noun(gam-ma)an interferon that is produced by T cells, regulates the immune response, and in a form produced by recombinant DNA technology is used especially to control infections due to inability of white blood cells to destroy certain bacteria and fungi
gamma
trademark(gam-ma)—used for a medical device that emits a highly focused beam of gamma radiation
gamma
noun(gam-ma)radiation composed of gamma rays
gamma
noun(gam-ma)a photon emitted spontaneously by a radioactive substance; also : a photon of higher energy than that of an X-ray