Crystal definition

krĭstəl
Frequency:
The transparent protective covering over the face of a watch.
noun
9
5
A high-quality, clear, colorless glass.
noun
2
0
The glass over the dial of a watch case.
noun
1
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Very clear.

"Do I make myself clear?" / "Crystal."

adjective
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The definition of crystal is clear or see through.

An example of crystal used as an adjective is the phrase "crystal lake" which means a lake where there is no garbage, pollution, etc. ruining the color or clarity of the water.

adjective
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A female given name.
pronoun
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Clear or transparent.

A crystal lake; the crystal clarity of their reasoning.

adjective
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(radio) Of or using a crystal.
adjective
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Crystal is defined as a mineral that is generally made of transparent quartz in a shape of cubic symmetry or a glass that is clear, colorless and of high quality.

An example of a crystal is a piece of amethyst in its natural form.

An example of a crystal is an antique European wine glass with cut out ornamentation.

noun
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1
A clear glass or plastic protective cover for the face of a watch or clock.
noun
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1
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(slang) A stimulant drug, usually methamphetamine, in its powdered form.
noun
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1
A homogenous solid formed by a repeating, three-dimensional pattern of atoms, ions, or molecules and having fixed distances between constituent parts.
noun
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1
The unit cell of such a pattern.
noun
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1
A natural or synthetic crystalline material having piezoelectric or semiconducting properties.
noun
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1
An electronic device containing such a material, as one that provides access to a radio frequency.
noun
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1
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An object, especially a vessel or ornament, made of such glass.
noun
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1
Such objects considered as a group.
noun
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1
A solidified form of a substance in which the atoms or molecules are arranged in a definite pattern that is repeated regularly in three dimensions: crystals tend to develop forms bounded by definitely oriented plane surfaces that are harmonious with their internal structures.
noun
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1
A clear, transparent mineral; esp., pure quartz.
noun
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1
A piece of such quartz cut in the form of an ornament.
noun
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1
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A very clear, brilliant glass.
noun
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1
Articles made of this glass, such as goblets, bowls, or other ware.
noun
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1
A piezoelectric body or plate, as of quartz, used to control the frequency of an oscillator or as a circuit element in a crystal filter.
noun
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1
A piezoelectric body used in a transducer, as in a crystal pickup or microphone.
noun
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1
(person, proper) A feminine name.
noun
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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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1
An electrical device, such as an oscillator or a diode used for detecting radio signals, made of such a material.
0
1
(countable) A solid composed of an array of atoms or molecules possessing long-range order and arranged in a pattern which is periodic in three dimensions.
noun
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1
(countable) A piece of glimmering, shining mineral resembling ice or glass.
noun
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1
(uncountable) A fine type of glassware, or the material used to make it.
noun
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1
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(uncountable, slang) Crystal meth: methamphetamine hydrochloride.
noun
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1
Anything clear and transparent like crystal.
noun
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Of or composed of crystal.
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. &diamf3; 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 mineral, especially a transparent form of quartz, having a crystalline structure, often characterized by external planar faces.
noun
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Like crystal; clear or transparent.
adjective
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4

Other Word Forms

Noun

Singular:
crystal
Plural:
crystals

Origin of crystal

  • Middle English cristal from Old French from Latin crystallum from Greek krustallos ice, crystal kreus- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • Old English cristal (“clear ice/mineral”), from Latin crystallum (“crystal, ice”), later reinforced from Anglo-Norman cristall, Middle French cristal, from Latin crystallum, from Ancient Greek κρύσταλλος (krustallos, “clear ice”), from κρύος (kruos, “frost”), from the Proto-Indo-European *krus-, *kru- (“hard, hard outer surface, crust”).

    From Wiktionary