An Etymological Dictionary of Astronomy and Astrophysics
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Of a → CCD detector, a pixel that is not sufficiently active.

→ dead; → pixel.

Of a → CCD detector, a pixel that has higher charge loss. Hot pixels are a type of noise affecting almost every CCD camera. They are caused by small contamination or production faults in the CCD sensor area.

→ hot; → pixel.

The smallest useful element of image information.

From pix, plural of pic, short for → picture + el, from → element.