Definition of retroreflective in US English:

retroreflective

adjective

  • See retroreflector

    • ‘The retroreflective material of the coat acts as a screen and gives a transparent - or invisible - effect.’
    • ‘Workers should wear clothing with retroreflective material.’
    • ‘Reflexite makes retroreflective materials for use in work-zone signing and on garments, drums, cones, and other equipment.’
    • ‘A digital camera takes a series of photos of the retroreflective targets from different angles and different rotations, with an additional photograph taken from the digital video camera installed in the vehicle.’
    • ‘Self-illuminated pavement markers offer certain advantages over conventional retroreflective markers, the most obvious being their visibility.’

Pronunciation

retroreflective

/-ˈflektiv/