Search Result for "iodine-131": 
Wordnet 3.0

NOUN (1)

1. 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; 



WordNet (r) 3.0 (2006):

iodine-131
    n 1: 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