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- DictionarySig·nal/ˈsiɡn(ə)l/
noun
- 1. a gesture, action, or sound that is used to convey information or instructions, typically by prearrangement between the parties concerned: "the firing of the gun was the signal for a chain of beacons to be lit"
- 2. an electrical impulse or radio wave transmitted or received: "equipment for receiving TV signals"
verb
- 1. transmit information or instructions by means of a gesture, action, or sound: "hold your fire until I signal"
communicate by means of an action, gesture, or sound. “The diner signaled the waiters to bring the menu”. synonyms: sign, signalise, signalize. see more. verb. be a signal for or a symptom of. “The economic indicators signal that the euro is undervalued”. synonyms: bespeak, betoken, indicate, point. see more.
a movement, light, or sound that gives information, or tells people what to do: At a signal from their teacher, the children all held up their flags. Don't move until I give the signal. Fewer examples. That light is a signal that the studio is being used. The flare was a signal that the ship was in trouble.
2 days ago · A signal is a gesture, sound, or action which is intended to give a particular message to the person who sees or hears it. They fired three distress signals. As soon as it was dark, Mrs Evans gave the signal. You mustn't fire without my signal. Synonyms: cue, sign, nod, prompting More Synonyms of signal. 2. verb.
a series of electrical waves that carry sounds, pictures or messages, for example to a radio, television or mobile phone. radio signals. TV signals. a digital signal. a high-frequency signal. a radar signal. to emit a signal. to detect/pick up signals. I couldn't get a signal on my phone.
1. To make a signal to: I signaled the driver to proceed. 2. To relate or make known by signals: They have signaled their willingness to negotiate. 3. To cause an effect in (a cell) by the activation of a receptor, as by a neurotransmitter or hormone. v.intr. To make a signal or signals.
technical. a : a message, sound, or image that is carried by waves of light or sound. The video/TV signal is scrambled. Satellite dishes receive television signals. a digital signal. The transmitter beams radio signals into space. b : a wave of light or sound that carries a message, sound, or image.
Signal refers to both the process and the result of transmission of data over some media accomplished by embedding some variation. Signals are important in multiple subject fields including signal processing, information theory and biology. In signal processing, a signal is a function that conveys information about a phenomenon. [1] .
