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Noun: sr  see-nyur [N. Amer], see-nee-u(r) [Brit]
  1. The unit of solid angle adopted under the Système International d'Unités
    - steradian
Noun: Sr
  1. 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
Adjective: sr.
  1. 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

Derived forms: srs

See also: senior

Type of: angular unit, metal, metallic element

Part of: celestite, sphere, strontianite

Encyclopedia: Sr