The strontium isotope with mass 90, having a half-life of 28 years, used for its high-energy beta emission in certain nuclear electric power sources and constituting a radiation hazard in fallout.
(Now Rare) Earlier; former; ancient
A unit of measure equal to the solid angle subtended at the center of a sphere by an area on the surface of the sphere that is equal to the radius squared. The total solid angle of a sphere is 4π steradians.
a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite
Find another word for sr. In this page you can discover 8 synonyms, antonyms, idiomatic expressions, and related words for sr, like: strontium, elder, older, steradian, atomic number 38, rh, lm and gs.