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noun
1.
2.
a lustrous rayon or silk fabric constructed in plain weave and used in women's apparel, lining, and drapery.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Radium
is always a great word to know.
So is saturated. Does it mean:
| a colorless, toxic, water-soluble gas having a suffocating odor, used chiefly as a disinfectant and preservative, contained in resins and plastics |
| a solution containing the maximum amount of solute capable of being dissolved under given conditions |
Collins
World English Dictionary
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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Etymonline
Word Origin & History
radium
"radioactive metallic element," 1899, from Fr. radium (P. Curie et al., 1898), formed in Mod.L. from L. radius "ray" (see radius); so called for its power of emitting energy in the form of rays.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary
radium ra·di·um (rā'dē-əm)
n.
Symbol Ra
A luminescent, highly radioactive metallic element found in minute amounts in uranium ores, used as a neutron source for some research purposes, and formerly used in cancer radiotherapy; its most stable isotope is Ra 226 with a half-life of 1,622 years. Atomic number 88; melting point 700°C; boiling point 1,140°C; 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
radium  (rā'dē-əm) Pronunciation Key
Symbol Ra A rare, bright-white, highly radioactive element of the alkaline-earth group. It occurs naturally in very small amounts in ores and minerals containing uranium, and it is naturally luminescent. Radium is used as a source of radon gas for the treatment of disease and as a neutron source for scientific research. Its most stable isotope is Ra 226 with a half-life of 1,622 years. Atomic number 88; melting point 700°C; boiling point 1,737°C; 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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American Heritage
Cultural Dictionary
radium definition
A naturally occurring radioactive chemical element. Its symbol is Ra.
Note: Radium was discovered by the chemists Marie and Pierre Curie.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Dynamo Rating For Radium
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