visual_signal
1. [ noun ] a signal that involves visual communication
Related terms: signal flare beacon post windsock red_light light rocket blinker armband flag watch_fire stoplight barber's_pole visual_communication
Similar spelling:   visual_sensation
  visual_agnosia
  visual_cell
  visual_space
  visual_sense
  visual_system
  visual_aspect
  visual_acuity
  visual_joke