Found 2 items, similar to strontium.
English → English (WordNet) Definition: strontium strontium n : a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite [syn: Sr, atomic number 38]
English → English (gcide) Definition: Strontium Strontium \Stron"ti*um\, n. [NL. See Strontia.] (Chem.) A metallic element of the calcium group, always naturally occurring combined, as in the minerals strontianite, celestite, etc. It is isolated as a yellowish metal, somewhat malleable but harder than calcium. It is chiefly employed (as in the nitrate) to color pyrotechnic flames red. Symbol Sr. Atomic weight 87.3. [1913 Webster]