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radiocarbon

[rey-dee-oh-kahr-buh n] /ˌreɪ di oʊˈkɑr bən/
noun, Chemistry
1.
Also called carbon 14. a radioactive isotope of carbon with mass number 14 and a half-life of about 5730 years: widely used in the dating of organic materials.
2.
any radioactive isotope of carbon.
Origin
1935-1940
1935-40; radio- + carbon
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for radio carbon

radiocarbon

/ˌreɪdɪəʊˈkɑːbən/
noun
1.
a radioactive isotope of carbon, esp carbon-14 See carbon (sense 1)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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radio carbon in Science
radiocarbon
  (rā'dē-ō-kär'bən)   
A radioactive isotope of carbon, especially carbon 14. Other radiocarbons include carbon 10, carbon 11, carbon 15, and carbon 16.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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6
6
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