the world > matter > chemistry > elements and compounds > metals > specific elements > strontium > [noun] > compounds > other (2)
(Originally †strontian earth, strontian lime, strontian mineral, strontian spar.) Properly, native strontium carbonate, but more commonly applied…
a radioactive isotope of strontium; spec. strontium-90, which is a product of uranium fission and decays by beta emission with a half-life of…