Signal-to-noise-ratio definition

sĭgnəl-tə-noiz
The ratio of the power of an electrical, electromagnetic, or optical signal to the power of background noise accompanying the signal.
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The ease with which useful information can be discerned in the context of much noise, talk, or undesired information.
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See SNR.
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(sciences) A figure of merit comparing the strength of a signal carrying information to the noise interfering with it.
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(colloquial) A way of describing how much interesting information is included in a message or conversation.
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Other Word Forms

Noun

Singular:
signal-to-noise-ratio
Plural:
signal-to-noise-ratios