WordNet (r) 3.0 (2006):

bohrium
    n 1: a transuranic element [syn: bohrium, Bh, element 107,
         atomic number 107]

The Elements (07Nov00):

bohrium
Competing name for unnilseptium, the 107th element, proposed by the
IUPAC in response to the discoverers of the element wanting to name it
nielsbohrium. Finally in 1997 the IUPAC decided to use Bohrium as the
official name of the 107th element.