signal


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Related to signal: Analog signal

sig·nal

(sig'năl),
1. Something that causes an action or conveys information.
2. A DNA template sequence that alters RNA polymerase transcription.
3. The end product observed when a specific sequence of DNA or RNA is deleted by some method.
4. The message transmitted on binding of an agonist to a receptor.

signal

(sĭg′nəl)
n.
Biology A physical entity, such as a chemical or an electromagnetic wave, that activates a cell receptor and elicits a specific response.
v. sig·naled, sig·naling, sig·nals or sig·nalled or sig·nalling
v.tr.
To cause an effect in (a cell) by the activation of a receptor, as by a neurotransmitter or hormone.

sig′nal·er, sig′nal·ler n.

signal

A measurable or recognisable indicator of an event or process.

signal

Medtalk A measurable or recognizable indicator of an event or process. See Magnetic resonance signal, Sexual body signal.

sig·nal

(sig'năl)
1. Something that causes an action.
2. A DNA template sequence that alters RNA polymerase transcription.
3. The end product observed when a specific sequence of DNA or RNA is deleted by some method.
4. Anything or action that communicates something.
References in periodicals archive ?
We are working on the great work of changing the signals at the Danish railways, and the experience from the S-path shows what great effect it has to switch the old, faulty signals with new, much more precise signals, says Transport Minister Benny Engelbrecht.
Enjoy this month's issue, and if you want to submit an article or would like the editorial staff to assist you in writing one, or if you have any outstanding photos that captures Signal Regiment in action please contact us.
For sample signal collection, the detection was made by the Ultraprobe 2000 and the signal was recorded using earphone and microphone that connected directly to the computer.
If two of the three consecutive packets match, the decision about a present traffic-light signal is taken.
Traffic wardens deployed at chowks with signals 'allow' everyone to keep moving according to their will and contribute to causing traffic jams.
For example, FIGURE 1 shows two voltage levels for an LVDS-type signal. Voltage coming off the two signal pins of the LVDS differential driver is called a differential signal, but this is a lie.
In our efforts, we will consider the following positive statisitics: the power spectra developed from the squared magnitude of a FFT signal segment, and the square-windowed periodogram of a signal segment.
According to the company, Signal Safari has been designed for use with Aeroflex broadband measurement instruments, including broadband signal and environment generators, analyzers, channel simulators and analysis workstations.
The above procedure covers the basics of the wavelet analysis of the given signal but it does not provide a tool to remove a noise from the noisy signal.
QUESTION FROM KELLY in Boston: I'm confused about differential signals. When the signal in the two channels is a 0 to 1 V signal in one and a 1 V to 0 signal in the other, everyone calls this a differential signal.
Male fish in the Colorado River roll their eyes to flash a novel "Back off, punk" signal at other males, researchers say.