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

Other words from radioimmunoassay

radioimmunoassayable \ˌrā-dē-ˌō-i-myə-nō-ˈa-ˌsā-ə-bəl, -i-ˌmyü-, -a-ˈsā \ adjective

First Known Use of radioimmunoassay

1961, in the meaning defined above

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The first known use of radioimmunoassay was in 1961

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radioimmunoassay

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

Medical Definition of radioimmunoassay 

: immunoassay of a substance (as insulin) that has been radiolabeled abbreviation RIA

Other words from radioimmunoassay

radioimmunoassayable \-ə-bəl \ adjective

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Britannica.com: Encyclopedia article about radioimmunoassay

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occurring twice a year or every two years

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