\sˈɛl ˈɒf], \sˈɛl ˈɒf], \s_ˈɛ_l ˈɒ_f]\
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2011 - English Dictionary Database
By DataStellar Co., Ltd
2006 - WordNet 3.0
By Princeton University

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abo group

  • a classification system for the antigens of human blood; used in blood transfusion therapy; four groups are and B AB O
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