radioactive iodine test ra·dioac·ti·veiodinetest uncommon noun 1. test of thyroid function in which the patient is give an oral does of radioactive iodine-131 Synonymsradioactive iodine test Related words Broader terms diagnostic test Narrower terms radioactive iodine excretion testradioactive iodine uptake test WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
