strontium
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Link To strontium
Collins
World English Dictionary
strontium (ˈstrɒntɪəm) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —n | |
| a soft silvery-white element of the alkaline earth group of metals, occurring chiefly in celestite and strontianite. Its compounds burn with a crimson flame and are used in fireworks. The radioisotope strontium-90, with a half-life of 28.1 years, is used in nuclear power sources and is a hazardous nuclear fall-out product. Symbol: Sr; atomic no: 38; atomic wt: 87.62; valency: 2; relative density: 2.54; melting pt: 769°C; boiling pt: 1384°C | |
| [C19: from New Latin, from | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10
Strontium
is always a great word to know.
So is zedonk. Does it mean:
| the offspring of a zebra and a donkey. |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
Etymonline
Word Origin & History
strontium
light metallic element, 1808, coined in Mod.L. by Eng. chemist Sir Humphry Davy (1778-1829) from Strontian, name of a parish in Argyllshire, Scotland, the site of lead mines where strontium was first found.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary
strontium stron·ti·um (strŏn'chē-əm, -tē-əm, -shəm)
n.
Symbol Sr
A soft, easily oxidized metallic element that ignites spontaneously in air when finely divided. Atomic number 38; atomic weight 87.62; melting point 777°C; boiling point 1,382°C; specific gravity 2.54; valence 2.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
strontium  (strŏn'chē-əm, -tē-əm) Pronunciation Key
Symbol Sr A soft, silvery metallic element of the alkaline-earth group that occurs naturally only as a sulfate or carbonate. One of its isotopes is used in the radiometric dating of rocks. Because strontium salts burn with a red flame, they are used to make fireworks and signal flares. Atomic number 38; atomic weight 87.62; melting point 769°C; boiling point 1,384°C; specific gravity 2.54; valence 2. See Periodic Table. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Naturally occurring strontium is not radioactive and is either referred to as stable strontium or strontium.
So far the radioactive contamination has been iodine and cesium with no reports of strontium or other non-volatile elements.
Strontium is a natural and commonly occurring element.
The rabbits carried strontium and cesium, which emit gamma rays, back out of the area in their digestive tracts.
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