NCIt definition : A radioisotope of strontium, a heavy metal found naturally as a non-radioactive element.
With a half-life of 50 days, strontium-89 is a beta emitter that is metabolized much
like calcium. This agent is preferentially absorbed by osteoblastic bone metastases.
(NCI04);
Alternative definition : NCI-GLOSS: A radioactive form of the metal strontium that is taken up by a part of
growing bone. It is being studied in the treatment of bone pain caused by some types
of cancer.;