Meaning of VISUAL SIGNAL

WordNet Dictionary
	Definition:		[n]  a signal that involves visual communication
	See Also:		armband, barber's pole, beacon, beacon fire, blinker, brake light, drogue, flag, flare, flash, light, post, red light, rocket, sign, signal, signal flag, signaling, skyrocket, sock, stake, stoplight, trafficator, turn indicator, turn signal, visual communication, warning light, watch fire, wind sleeve, windsock