Bh
Multiple Entries:Bh BH bohrium
Concise Oxford English Dictionary © 2008 Oxford University Press:
Bh
▶symbol the chemical element bohrium.
Concise Oxford English Dictionary © 2008 Oxford University Press:
BH
▶abbreviation Belize (international vehicle registration).
– origin from British Honduras (former name for Belize).
Concise Oxford English Dictionary © 2008 Oxford University Press:
bohrium /ˈbɔːrɪəm/
▶noun the chemical element of atomic number 107, a very unstable element made by high-energy atomic collisions. (Symbol: Bh)
– origin 1990s (earlier (1970s) called nielsbohrium): named after the Danish physicist Niels Bohr.
'Bh' also found in these Oxford entries:

