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radiolysis
radiometer
radiometric dating
radiomimetic
radionics
radionuclide
radiopaque
radiopharmaceutical
radiophone
radiophotograph
radioprotective
radioresistant
radioscopy
radiosensitive
radiosonde
radiostrontium
radiotelephone
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radioimmunoassay
ra·di·o·im·mu·no·as·say [ ràydee ō ìmmyənō áss ày ]


noun 
Definition:
 
testing for antibodies: the technique of measuring the levels of antibodies in the blood by introducing into the bloodstream a substance that has a radioactive tracer attached to it

ra·di·o·im·mu·no·as·say·a·ble [ ràydee ō ìmmyənō áss ày əb'l ] adjective
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