crystal : Idioms & Phrases

Index

Blood crystal

  • (Physiol.), one of the crystals formed by the separation in a crystalline form of the hæmoglobin of the red blood corpuscles; hæmatocrystallin. All blood does not yield blood crystals.
Webster 1913

Compound crystal

  • (Crystallog.), a twin crystal, or one seeming to be made up of two or more crystals combined according to regular laws of composition.
Webster 1913

crystal ball

  • noun a glass or crystal globe used in crystal gazing by fortunetellers
WordNet

crystal clear

  • adjective satellite transmitting light; able to be seen through with clarity
    lucid; limpid; pellucid; crystalline; transparent.
    • the cold crystalline water of melted snow
    • crystal clear skies
    • could see the sand on the bottom of the limpid pool
    • lucid air
    • a pellucid brook
    • transparent crystal
  • adjective satellite (of language) transparently clear; easily understandable
    luculent; lucid; limpid; perspicuous; pellucid.
    • writes in a limpid style
    • lucid directions
    • a luculent oration"- Robert Burton
    • pellucid prose
    • a crystal clear explanation
    • a perspicuous argument
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crystal counter

  • noun a counter tube in which an ionizing event increases conductivity
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crystal detector

  • noun a detector consisting of a fine wire in contact with a galena crystal; acts as a rectifier
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crystal gazing

  • noun staring into a crystal ball to arouse visions of future or distant events
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crystal lattice

  • noun a 3-dimensional geometric arrangement of the atoms or molecules or ions composing a crystal
    space lattice; Bravais lattice.
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crystal microphone

  • noun a microphone in which sound waves vibrate a piezoelectric crystal that generates a varying voltage
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crystal oscillator

  • noun an oscillator that produces electrical oscillations at a frequency determined by the physical characteristics of a piezoelectric quartz crystal
    quartz oscillator.
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crystal pickup

  • noun a cartridge in which an output voltage is produced by the vibration of a piezoelectric crystal
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crystal rectifier

  • noun a semiconductor that consists of a p-n junction
    semiconductor diode; diode; junction rectifier.
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crystal set

  • noun an early radio receiver using a crystal detector
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crystal tea

  • noun evergreen shrub of eastern North America having white or creamy bell-shaped flowers and dark green hairy leaves used for tea during American Revolution
    Labrador tea; Ledum groenlandicum.
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crystal violet

  • noun a green crystal (violet in water) used as a dye or stain or bactericide or fungicide or anthelmintic or burn treatment
    gentian violet.
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ice crystal

  • noun small crystals of ice
    diamond dust; frost snow; ice needle; frost mist; poudrin; snow mist.
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Iceland crystal

  • a transparent variety of calcite, or crystallized calcium carbonate, brought from Iceland, and used in certain optical instruments, as the polariscope.
Webster 1913

liquid crystal

  • noun a liquid exhibiting properties of a crystal that are not shown by ordinary liquids
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liquid crystal display

  • noun a digital display that uses liquid crystal cells that change reflectivity in an applied electric field; used for portable computer displays and watches etc.
    LCD.
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Mountain crystal

  • . See under Crystal.
Webster 1913

Negative crystal

  • . (a) A cavity in a mineral mass, having the form of a crystal . (b) A crystal which has the power of negative double refraction . See refraction.
Webster 1913

Optic axis of a crystal

  • the direction in which a ray of transmitted light suffers no double refraction. All crystals, not of the isometric system, are either uniaxial or biaxial.
Webster 1913

piezoelectric crystal

  • noun a crystal that can be used as a transducer
WordNet

Positive crystals

  • (Opt.), a doubly refracting crystal in which the index of refraction for the extraordinary ray is greater than for the ordinary ray, and the former is refracted nearer to the axis than the latter, as quartz and ice; opposed to negative crystal, or one in which this characteristic is reversed, as Iceland spar, tourmaline, etc.
Webster 1913

Protein crystal

  • . (Bot.) See Crystalloid, n., 2.
Webster 1913

Pseudomorphous crystal

  • one which has a form that does not result from its own powers of crystallization.
Webster 1913

quartz crystal

  • noun a thin plate or small rod of quartz cut along certain lines and ground so that it can produce an electric signal at a constant frequency; used in crystal oscillators
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Replaced crystal

  • (Crystallog.), a crystal having one or more planes in the place of its edges or angles.
Webster 1913

Rock crystal

  • noun a clear quartz used in making electronic and optical equipment
    transparent quartz.
WordNet
  • (Min.), limpid quartz. See Quartz, and under Crystal.
Webster 1913

Rock crystal, ∨ Mountain crystal

  • any transparent crystal of quartz, particularly of limpid or colorless quartz.
Webster 1913

Secondary crystal

  • (Min.), a crystal derived from one of the primary forms.
Webster 1913

Twin crystal

  • . See Twin, n., 4.
Webster 1913

watch crystal

  • noun a protective cover that protects the face of a watch
    crystal; watch glass.
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