crystal detector

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noun Radio.

a device for rectifying a modulated radio-frequency signal, consisting of a crystal of germanium, silicon, galena, or the like with a cat whisker contact, permitting a high-frequency current to pass freely in one direction only: one of the two principal components of a crystal set.

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Origin of crystal detector

First recorded in 1905–10

Words nearby crystal detector

crystal, crystal ball, crystal class, crystal-clear, crystal counter, crystal detector, crystal form, crystal gazing, crystal habit, crystal healing, crystall-

How to use crystal detector in a sentence

Some of the video was crystal clear, but in other footage the figures were just fuzzy shadows in black and white.
Exclusive: Inside a Cop-Killer’s Final Hours|Michael Daly|December 31, 2014|DAILY BEAST
Sailor Moon Crystal is expected to wrap up its initial storylines by the end of the year.
‘Sailor Moon’ Is an Oasis for Superheroes Who Can Save the Universe in Heels|Rich Goldstein|November 26, 2014|DAILY BEAST
Sailor Moon Crystal is a more ambitious retelling of multiple Sailor Moon story arcs.
‘Sailor Moon’ Is an Oasis for Superheroes Who Can Save the Universe in Heels|Rich Goldstein|November 26, 2014|DAILY BEAST
The Enquirer story was written by Robin Mizrahi, who interviewed Ferrier and had arranged for her to take a lie detector test.
How Bill Cosby Allegedly Silenced His Accusers Through A Tabloid Smear Campaign|Marlow Stern|November 21, 2014|DAILY BEAST

She agreed to meet with tabloid editors in New York City and take a lie detector test to back up her claims.
I Warned You About Bill Cosby in 2007|Mark Ebner|November 20, 2014|DAILY BEAST
The long axis of the hip-roof crystal is often so shortened that it resembles the envelop crystal of calcium oxalate.
A Manual of Clinical Diagnosis|James Campbell Todd
The soul of music which is embodied in them is imprisoned within wood and crystal, and is no more heard of men.
Violins and Violin Makers|Joseph Pearce
Jessie had bought a galena crystal mounted, as that was more satisfactory, the book said.
The Campfire Girls of Roselawn|Margaret Penrose
You look at a clear perfect rich colour, as it were, through the purest crystal.
Violins and Violin Makers|Joseph Pearce
There were silver and gold, as she had said there would be, and crystal which glittered like the gems which the women wore.
The Awakening and Selected Short Stories|Kate Chopin

British Dictionary definitions for crystal detector

crystal detector

noun

electronics a demodulator, used esp in microwave circuits and in early radio receivers, consisting of a thin metal wire in point contact with a semiconductor crystal

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012