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- n. (medicine) The radioactive isotope of iodine, 13153I, having a half-life of 8 days; used as a medical tracer
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. heavy radioactive isotope of iodine with a half-life of 8 days; used in a sodium salt to diagnose thyroid disease and to treat goiter
Sorry, no etymologies found.