PROFESSING
\pɹəfˈɛsɪŋ], \pɹəfˈɛsɪŋ], \p_ɹ_ə_f_ˈɛ_s_ɪ_ŋ]\
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