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Overview of noun sr.

The noun sr has 2 senses


  • 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)

  • steradian, sr -- (the unit of solid angle adopted under the Systeme International d'Unites)


Overview of adj sr.

The adj sr. has 1 sense


  • elder, older, sr. -- (used of the older of two persons of the same name especially used to distinguish a father from his son; "Bill Adams, Sr.")