Definitions for sr
Overview of noun sr
The noun sr has 2 senses? (no senses from tagged texts)
1. strontium, Sr, atomic number 38
(a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite)
2. steradian, sr
(the unit of solid angle adopted under the Systeme International d'Unites)
