[ noun ] immunoassay of a substance that has been radioactively labeled <noun.cognition>
Lawyers in the case said Thursday it is apparently the first time that a party in a matrimonial case has received court permission to have the other party undergo the test, called radioimmunoassay.
Then an established measurement technique known as radioimmunoassay is used to see how much, if any, drug residue is in the hair.