American Heritage Dictionary
(3)
Century Dictionary
(2)
GNU Webster's 1913
(1)
WordNet
(2)
Elsewhere on the web
International Institute for Strategic Studies predicted that Tehran will have enough fissile material for at least one nuclear weapon by the end of 2009— In From the Cold
Robert Gibbs, Obama's spokesman, said the president believed "loose nukes", stolen nuclear materials or the acquisition by terrorists of weapons-grade fissile material, were among the gravest risks to the US.— Politics.ie - 3,4,5,6,7,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,27,28,29,30,32,33,34,35,36,37,38,39,41,42,48,49,50,52
About 30 minutes into the video the editors splice in an English language video claiming that if al Qaeda ever got enough fissile material, they could easily make a nuclear weapon out of it.— The Jawa Report
Some also warned it could help supply India's arms programs with fissile material.— Kentucky.com: Homepage

American Heritage Dictionary (1)
Century Dictionary (1)
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