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Medical Definition of Technetium-99
1. A radioisotope of technetium which is the decay product of technetium-99m and has a weak beta emission and a physical half-life of 213,000 years. (05 Mar 2000)
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1. A radioisotope of technetium which is the decay product of technetium-99m and has a weak beta emission and a physical half-life of 213,000 years. (05 Mar 2000)