Search Result for "crash barrier":
Wordnet 3.0

NOUN (1)

1. a strong protective barrier that is erected around a racetrack or in the middle of a dual-lane highway in order to reduce the likelihood of severe accidents; 



WordNet (r) 3.0 (2006):

crash barrier
    n 1: a strong protective barrier that is erected around a
         racetrack or in the middle of a dual-lane highway in order
         to reduce the likelihood of severe accidents