PB Syllabification: (PB)Definition of PB abbreviation British Pharmacopoeia. [Latin Pharmacopoeia Britannica] (also pb) paperback:hb $18.99, pb $6.99 Prayer Book. noun informal short for personal best.she took another half a second off her PB in the Olympic heatsPB in other Oxford dictionaries Definition of PB in the British & World English dictionary
