KNOX'S POWDER
\nˈɒksɪz pˈa͡ʊdə], \nˈɒksɪz pˈaʊdə], \n_ˈɒ_k_s_ɪ_z p_ˈaʊ_d_ə]\
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Word of the day
abo group
- a classification system for the antigens of human blood; used in blood transfusion therapy; four groups are and B AB O