NATIONAL ACADEMY OF SCIENCES

\nˈaʃənə͡l ɐkˈadəmi ɒv sˈa͡ɪ͡ənsɪz], \nˈaʃənə‍l ɐkˈadəmi ɒv sˈa‍ɪ‍ənsɪz], \n_ˈa_ʃ_ə_n_əl ɐ_k_ˈa_d_ə_m_i_ ɒ_v s_ˈaɪə_n_s_ɪ_z]\
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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