Sr (Noun)
Meaning 1
A soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite.
Classification
Nouns denoting substances.
Synonyms
Hypernyms
Hyponyms
Meaning 2
The unit of solid angle adopted under the Systeme International d'Unites.
Classification
Nouns denoting quantities and units of measure.