Definition of Sr
Noun: sr see-nyur [N. Amer], see-nee-u(r) [Brit]
- The unit of solid angle adopted under the Système International d'Unités
- steradian
- A soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite
- strontium, atomic number 38
- Used of the older of two persons of the same name especially used to distinguish a father from his son
"Bill Adams, Sr.";
- elder, older
Anagrams containing the word sr