Wordnet 3.0
NOUN (1)
1. 
 a gate or bar across a toll bridge or toll road which is lifted when the toll is paid; 
[syn: tollgate, tollbar]
WordNet (r) 3.0 (2006):
tollbar
    n 1: a gate or bar across a toll bridge or toll road which is
         lifted when the toll is paid [syn: tollgate, tollbar]