POTASSIUM-ARGON DATING
\pətˈasi͡əmˈɑːɡɒn dˈe͡ɪtɪŋ], \pətˈasiəmˈɑːɡɒn dˈeɪtɪŋ], \p_ə_t_ˈa_s_iə_m_ˈɑː_ɡ_ɒ_n d_ˈeɪ_t_ɪ_ŋ]\
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.