PLUTONIAN
\pluːtˈə͡ʊni͡ən], \pluːtˈəʊniən], \p_l_uː_t_ˈəʊ_n_iə_n]\
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2006
- WordNet 3.0
By Princeton University
2011
- English Dictionary Database
By DataStellar Co., Ltd
2010
- New Age Dictionary Database
By Oddity Software
1913
- Webster's Revised Unabridged Dictionary
By Noah Webster.
1919
- The Concise Standard Dictionary of the English Language
By James Champlin Fernald