radioimmunoassay
ra·dio·im·mu·no·as·say
noun\ˌrā-dē-ˌō-i-myə-nō-ˈa-ˌsā, -i-ˌmyü-, -a-ˈsā\
Definition of RADIOIMMUNOASSAY
: immunoassay of a substance that has been radioactively labeled
— ra·dio·im·mu·no·as·say·able \-ə-bəl\ adjective
First Known Use of RADIOIMMUNOASSAY
1961
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