The Collaborative International Dictionary of English v.0.48:

Brome \Brome\, n. [F.] (Chem.)
   See Bromine.
   [1913 Webster]

WordNet (r) 3.0 (2006):

brome
    n 1: any of various woodland and meadow grasses of the genus
         Bromus; native to temperate regions [syn: brome,
         bromegrass]