Crystal
1 Americannoun
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a city in SE Minnesota, near Minneapolis.
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a female given name.
noun
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a clear, transparent mineral or glass resembling ice.
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the transparent form of crystallized quartz.
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Chemistry, Mineralogy. a solid body having a characteristic internal structure and enclosed by symmetrically arranged plane surfaces, intersecting at definite and characteristic angles.
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anything made of or resembling such a substance.
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a single grain or mass of a crystalline substance.
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glass of fine quality and a high degree of brilliance.
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articles, especially glassware for the table and ornamental objects, made of such a glass.
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the glass or plastic cover over the face of a watch.
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Radio.
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the piece of germanium, silicon, galena, or the like forming the essential part of a crystal detector.
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the crystal detector itself.
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Electronics. a quartz crystal ground in the shape of a rectangular parallelepiped, which vibrates strongly at one frequency when electric voltages of that frequency are placed across opposite sides: used to control the frequency of an oscillator crystal oscillator, as of a radio transmitter.
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Slang. any stimulant drug in powder form, as methamphetamine or PCP.
adjective
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composed of crystal.
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resembling crystal; clear; transparent.
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Radio. pertaining to or employing a crystal detector.
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indicating the fifteenth event of a series, as a wedding anniversary.
verb (used with object)
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to make into crystal; crystallize.
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to cover or coat with, or as if with, crystal (usually followed byover ).
noun
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a piece of solid substance, such as quartz, with a regular shape in which plane faces intersect at definite angles, due to the regular internal structure of its atoms, ions, or molecules
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a single grain of a crystalline substance
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anything resembling a crystal, such as a piece of cut glass
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a highly transparent and brilliant type of glass, often used in cut-glass tableware, ornaments, etc
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( as modifier )
a crystal chandelier
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something made of or resembling crystal
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crystal glass articles collectively
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electronics
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a crystalline element used in certain electronic devices as a detector, oscillator, transducer, etc
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( as modifier )
crystal pick-up
crystal detector
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a transparent cover for the face of a watch, usually of glass or plastic
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(modifier) of or relating to a crystal or the regular atomic arrangement of crystals
crystal structure
crystal lattice
adjective
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A homogenous solid formed by a repeating, three-dimensional pattern of atoms, ions, or molecules and having smooth external surfaces with characteristic angles between them. Crystals can occur in many sizes and shapes.
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◆ The particular arrangement in space of these atoms, molecules, or ions, and the way in which they are joined, is called a crystal lattice. There are seven crystal groups or systems. Each is defined on the basis of the geometrical arrangement of the crystal lattice.
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A natural or synthetic material, such as quartz or ceramic, that consists of such crystals. When subjected to mechanical stresses, crystalline materials can generate an electric charge or, when subjected to an electric field, they can generate mechanical vibrations in what is known as the piezoelectric effect.
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An electrical device, such as an oscillator or a diode used for detecting radio signals, made of such a material.
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Discover More
Most minerals are crystalline structures.
Other Word Forms
- crystallike adjective
- uncrystaled adjective
- uncrystalled adjective
Etymology
Origin of crystal
First recorded before 1000; Middle English cristal(le), Old English cristalla, from Medieval Latin cristallum, Latin crystallum, from Greek krýstallos “clear ice, rock crystal,” derivative of krystaínein “to freeze”; akin to krȳmós “frost, cold” ( crymotherapy ), krýos “cold, frost” ( cryo- )
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
I’m a little more grounded, a little less kooky, maybe a lot less kooky, but I’m into astrology, I’m into crystals, I’m into energy work, pretty much all the same things.
When only a few atoms are pinned, a crystal can grow from the liquid and continue to expand until the entire nanoparticle becomes solid.
From Science Daily
He also gives each table a little dish with some tiny crystals on it—almost like salt grains—and the tiniest little spoon I’ve ever seen.
From Literature
The extravagant abode features soaring 50-foot ceilings, Italian-style gardens, and Baccarat crystal chandeliers so heavy they had to be hung from steel beams.
From MarketWatch
"The Scottish government has made it crystal clear there is no reason to ever carry a weapon, including a knife, at any time."
From BBC
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.