RAPID EYE MOVEMENT SLEEP
\ɹˈapɪd ˈa͡ɪ mˈuːvmənt slˈiːp], \ɹˈapɪd ˈaɪ mˈuːvmənt slˈiːp], \ɹ_ˈa_p_ɪ_d ˈaɪ m_ˈuː_v_m_ə_n_t s_l_ˈiː_p]\
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By Princeton University
Word of the day
Snake's-head
- Guinea-hen flower; -- so called in England because its spotted petals resemble the scales of a snake's head.