PERTUSSIS TOXINS
\pətˈʌsɪs tˈɒksɪnz], \pətˈʌsɪs tˈɒksɪnz], \p_ə_t_ˈʌ_s_ɪ_s t_ˈɒ_k_s_ɪ_n_z]\
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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.