visual signal

Also found in: Thesaurus.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.visual signal - a signal that involves visual communication
signal, signaling, sign - any nonverbal action or gesture that encodes a message; "signals from the boat suddenly stopped"
visual communication - communication that relies on vision
watch fire - a fire lighted at night as a signal
light - a visual warning signal; "they saw the light of the beacon"; "there was a light at every corner"
red light, warning light - a cautionary sign of danger
flare, flash - a burst of light used to communicate or illuminate
signal flag, flag - a rectangular piece of fabric used as a signalling device
air sock, air-sleeve, wind cone, wind sleeve, wind sock, windsock, drogue, sock - a truncated cloth cone mounted on a mast; used (e.g., at airports) to show the direction of the wind
stake, post - a pole or stake set up to mark something (as the start or end of a race track); "a pair of posts marked the goal"; "the corner of the lot was indicated by a stake"
trafficator, turn indicator, turn signal, blinker - a blinking light on a motor vehicle that indicates the direction in which the vehicle is about to turn
armband - worn around arm as identification or to indicate mourning
skyrocket, rocket - propels bright light high in the sky, or used to propel a lifesaving line or harpoon
beacon, beacon fire - a fire (usually on a hill or tower) that can be seen from a distance
brake light, stoplight - a red light on the rear of a motor vehicle that signals when the brakes are applied to slow or stop
barber's pole - striped pole outside a barbershop
References in periodicals archive ?
Abe Davis, a graduate student in electrical engineering and computer science at MIT said that when sound hits an object, it causes the object to vibrate and the motion of this vibration creates a very subtle visual signal that's usually invisible to the naked eye.
In the BEx range the new radial, omni-directional BExS110-R alarm horn sounder and BExCS110-05-R combined audible and visual signal are now available as is the new BExI-1120D-R 'Belltronic'; electro mechanical alternative to the traditional bell.
This simple visual signal could be exploited for biosensing applications, such as detecting biomarkers for various diseases.
The pivot-less tumbler mechanism and laminated trigger blade provide the necessary depth of penetration into the pipeline to give a reliable and visual signal with a negligible effect on the product flow.
An available optional alarm system has an audio and visual signal for high-temperature conditions, push-button test, audio silencer, and battery backup, as well as an optional temperature recorder that offers a 6" dial, and seven-day clock with stylus pen.
jararacussu are mimicking or 'parasitising' parts of the visual signal system of H.
A tracking mode adjusts the unit's control valve to maintain preset flow parameters and an integrated alarm function provides an audible and visual signal.
As a visual signal flashes up a chain of cells, parts of an image become lines and curves, then shapes, like an eye or nose, and finally an entire face--all in about 20 milliseconds, or 10 times faster than the blink of an eye.
The purple candles are a visual signal that something special is coming,'' O'Reilly said.
Threshold entry should not exceed a half-inch rise, push-button controls should be oversized, and both a visual signal and an audible tone should accompany each stop on the elevator.
In my years as a coach, I got a lot of mileage out of a visual signal system with my pitchers, from Little League on up.
Jennifer Wathan of the University of Sussex said that their study is the first to examine a potential cue to attention that humans do not have: the ears and they have found that in horses their ear position was also a crucial visual signal that other horses respond to.