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PERIODIC SYSTEM OF THE ELEMENTS

\pˌi͡əɹɪˈɒdɪk sˈɪstəm ɒvðɪ ˈɛlɪmənts], \pˌi‍əɹɪˈɒdɪk sˈɪstəm ɒvðɪ ˈɛlɪmənts], \p_ˌiə_ɹ_ɪ__ˈɒ_d_ɪ_k s_ˈɪ_s_t_ə_m ɒ_v_ð_ɪ_ ˈɛ_l_ɪ_m_ə_n_t_s]\

Definitions of PERIODIC SYSTEM OF THE ELEMENTS

1916 - Appleton's medical dictionary

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The division of the chemical elements into groups based upon their comparative atomic weights.

1916 - Appleton's medical dictionary
By Smith Ely Jelliffe

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