MENTAL DEFECTIVENESS

\mˈɛntə͡l dɪfˈɛktɪvnəs], \mˈɛntə‍l dɪfˈɛktɪvnəs], \m_ˈɛ_n_t_əl d_ɪ_f_ˈɛ_k_t_ɪ_v_n_ə_s]\

Definitions of MENTAL DEFECTIVENESS

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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd

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S. Smith Stevens

  • United States psychologist and psychophysicist who proposed Stevens' power law to replace Fechner's law (1906-1973)
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