| NOUN | substance | Sr, strontium, atomic number 38 | a soft silver-white or yellowish metallic element of the alkali metal group |
|---|---|---|---|
| quantity | sr, steradian | the unit of solid angle adopted under the Systeme International d'Unites |
| Sounds | sih'ster; siy'nyer | |
|---|---|---|
| Rhymes | abductor ... zoster: 649 rhymes with ter... | |
| behavior ... Xavier: 32 rhymes with yer... | ||
| Meaning | A soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite. | |
|---|---|---|
| Synonyms | strontium, atomic number 38 | |
| Narrower | strontium 90 | A radioactive isotope of strontium (with the mass number 90) that is present in the fallout from nuclear explosions |
| Broader | metallic element, metal | Any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc. |
| Substance of | celestite | A mineral consisting of strontium sulphate |
| strontianite | A mineral consisting of strontium carbonate | |
| Spanish | estroncio, número atómico 38, Sr | |
| Catalan | estronci, número atòmic 38, Sr | |
| Meaning | The unit of solid angle adopted under the Systeme International d'Unites. | |
|---|---|---|
| Synonym | steradian | |
| Part of | sphere | A three-dimensional closed surface such that every point on the surface is equidistant from the center |
| Broader | angular unit | A unit of measurement for angles |
| Spanish | estereorradián | |
| Catalan | estereoradiant | |
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