অর্থ : A soft silver-white or yellowish metallic element of the alkali metal group. Turns yellow in air. Occurs in celestite and strontianite.
সমার্থক : atomic number 38, strontium
অর্থ : The unit of solid angle adopted under the Systeme International d'Unites.
সমার্থক : steradian
Sr meaning in Bengali (Bangla).