SEMON'S LAW'S SIGN
\sˈɛmənz lˈɔːz sˈa͡ɪn], \sˈɛmənz lˈɔːz sˈaɪn], \s_ˈɛ_m_ə_n_z l_ˈɔː_z s_ˈaɪ_n]\
Definitions of SEMON'S LAW'S SIGN
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- A division of Arachnida including those spiders which have four lungs, or pulmonary sacs. It includes the bird spiders (Mygale) and trapdoor spiders. See Mygale.