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radioimmunoassay

radioimmunoassay

noun ra·dio·im·mu·no·as·say \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

radioimmunoassay

noun ra·dio·im·mu·no·as·say \ˌrād-ē-ō-ˌim-yə-nō-ˈas-ˌā, -im-ˌyü-, -a-ˈsā\   (Medical Dictionary)

Medical Definition of RADIOIMMUNOASSAY

:  immunoassay of a substance (as insulin) that has been radiolabeled—abbreviation RIA
ra·dio·im·mu·no·as·say·able \-ə-bəl\ adjective

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