Definition of sealed-beam in English:

sealed-beam

adjective

  • Denoting a vehicle headlight with a sealed unit consisting of the light source, reflector, and lens.

    • ‘However, some vehicles use sealed beam lighting which requires that you convert to bulb type lighting.’
    • ‘This document establishes performance requirements, material requirements, design requirements, and design guidelines for sealed beam headlamps.’
    • ‘Sealed beam headlights are much harder to replace compared to composite headlamps.’

Pronunciation:

sealed-beam

/ˈsē(ə)ldˌbēm/