POSITRON

\pˈɒsɪtɹˌɒn], \pˈɒsɪtɹˌɒn], \p_ˈɒ_s_ɪ_t_ɹ_ˌɒ_n]\
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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd
 
2010 - Medical Dictionary Database
By DataStellar Co., Ltd