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any of the radioactive isotopes of gold, especially 198Au; used as scintiscanning agents and antineoplastic agents. See also gold 198.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
radioactive goldAny of the radionuclides of gold, the most commonly used of which is beta- and gamma-emitting 198Au, with a half-life of 2.7 days. It is used clinically as an implant for treating certain cancers; it was formerly popular for scintigraphy.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.