plural of quartz crystal

(electronics) A small crystal of quartz accurately cut in certain directions so that it can be vibrated at a particular frequency, to produce an electric signal of constant known frequency.

The action or practice of gazing into a crystal ball in the hope or belief of seeing the future.

Someone who claims to be able to see the future by gazing into a crystal ball. / (figuratively) Someone who makes predictions about the future, especially when these are seen as speculative.

plural of negative crystal

plural of liquid crystal display

A display device that uses liquid crystals to control luminance of each pixel or pattern.

a clock which is regulated by a quartz crystal

plural of Charcot-Leyden crystal

(pathology, especially in plural) Elongated, double-pyramidal crystal of eosinophils found in the sputum in bronchial asthma