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radioimmunoassay Line breaks: radio|immuno|assay
Pronunciation: /ˌreɪdɪəʊɪˌmjʊnəʊaˈseɪ/

Definition of radioimmunoassay in English:


A technique for determining antibody levels by introducing an antigen labelled with a radioisotope and measuring the subsequent radioactivity of the antibody component.
Example sentences
  • Basal serum C peptide levels were measured by radioimmunoassay after an overnight fast.
  • Plasma folate levels were measured by radioimmunoassay for the quantitative determination of vitamin B 12 and folate in serum.
  • To confirm the diagnosis, allergen specific serum IgE was measured by radioimmunoassay according to the manufacturer's instructions.

Definition of radioimmunoassay in:

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Pronunciation: ɪˈnɒkjʊəs
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