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contrast ratio

Ratio between the brightness or intensity measurement taken when the screen is displaying a blank video signal and a full, white video signal. This ratio determines the readability of the display so as to measure "depth" of an image or as a measure of how well the image can be seen in high ambient light.

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Industry/Domain: Health care Category: Psychiatry

Onychophagia

The practise of biting one's nails, esp. when done habitually and as a symptom of emotional disturbance.