passing beam headlamp passing beam headlamp /ˈpæs.ɪŋ biːm ˈhɛd.læmp/

noun

1. Dipped-beam (also called low, passing, or meeting beam) headlamp provides a light distribution to give adequate forward and lateral illumination without dazzling other road users with excessive glare; this beam is specified for use whenever other vehicles are present ahead.  ( dipped-beam headlamp , low beam headlamp , meeting beam headlamp , passing beam headlamp )
   Dipped-beam (also called low, passing, or meeting beam) headlamp provides a light distribution to give adequate forward and lateral illumination without dazzling other road users with excessive glare; this beam is specified for use whenever other vehicles are present ahead.