Translation guide
A radioactive isotope, used in medicine, industry, and research. The standard Japanese term is 放射性同位体, often abbreviated as ラジオアイソトープ in technical contexts.
The scientific concept of an isotope that emits radiation.
The standard, formal term used in scientific and technical writing. Literally 'radioactive isotope'.
Radioisotopes are used in medicine and industry.
Common abbreviation used in technical and medical fields. Often used in compounds.
I had a radioisotope scan.
Abbreviation used in very technical contexts, especially in written form or among specialists.
RI facilities have strict safety standards.