B with top bar
The Latin letter B with top bar, Ƃ is a letter of the Latin alphabet. It is similar to the Cyrillic Б б in appearance.
It was used in the Zhuang alphabet from 1957 to 1986, when it was replaced by the digraph mb. It has also sometimes been used for the uppercase form of Ɓ ɓ, for example in Shona.
The letter first appeared in Unicode version 1.1.0 in June 1993.