SPERMADUCT

\spˈɜːmɐdˌʌkt], \spˈɜːmɐdˌʌkt], \s_p_ˈɜː_m_ɐ_d_ˌʌ_k_t]\
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1920 - A dictionary of scientific terms.
By Henderson, I. F.; Henderson, W. D.
 
1920 - A dictionary of scientific terms (6th edition)
By J.H. Kenneth