crystal


Also found in: Dictionary, Thesaurus, Legal, Financial, Acronyms, Idioms, Encyclopedia, Wikipedia.
Related to crystal: Crystal healing, crystal oscillator

crystal

 [kris´t'l]
a homogeneous angular solid of definite form, with systematically arranged elemental units.
hydroxyapatite crystal microscopic crystals of hydroxyapatite occurring in joints or bursae in a variety of connective tissue disorders.

crys·tal

(kris'tăl),
A solid of regular shape and, for a given compound, characteristic angles, formed when an element or compound solidifies slowly enough, as a result either of freezing from the liquid form or of precipitating out of solution, to allow the individual molecules to take up regular positions with respect to one another.
[G. krystallos, clear ice, crystal]

crystal

/crys·tal/ (kris´t'l) a homogeneous angular solid of definite form, with systematically arranged elemental units.
blood crystals  hematoidin crystals in the blood.
Charcot-Leyden crystals  elongated, diamond-shaped, birefringent crystals derived from disintegrating eosinophils, seen in serous fluids such as the bronchial secretions in asthma and in stools in some cases of intestinal parasitism.

crystal

[kris′təl]
Etymology: Gk, krystallos
a solid substance, either organic or inorganic, the atoms or molecules of which are arranged in a regular, repeating three-dimensional pattern, which determines the shape of a crystal. crystalline, adj.

crystal

Drug slang A popular term for a crystallized form of methamphetamine; PCP; amphetamine; cocaine Urology Kidney stone, see there Vox populi A formed structure, often composed of a single type of material, which has a characteristic appearance by LM. See Birefringent crystal, Calcium oxalate crystal, Charcot-Leyden crystal, Coffin lid crystal, Hemoglobin C crystal, Jackstraw crystal, Lead crystal, Parking lot crystal, Piezoelectric crystal, Reinke crystal, Rhomboid crystal, Space crystal, Uric acid crystal, Washington monument crystal.

crys·tal

(kris'tăl)
A solid of regular shape and, for any given compound, characteristic angles, formed when an element or compound solidifies slowly enough, as a result either of freezing from the liquid form or of precipitating out of solution, to allow the individual molecules to take up regular positions with respect to one another; can be seen in body fluids.
[G. krystallos, clear ice, crystal]

crystal,

n distinctive form of molecule created when an element or chemical compound is frozen or slowly solidified. Each element or compound has a unique structure often used in gem healing and in amulets of pendulum.

crys·tal

(kris'tăl)
A solid of regular shape and, for a given compound, characteristic angles, formed when an element or compound solidifies slowly enough, as a result either of freezing from the liquid form or of precipitating out of solution, to allow the individual molecules to take up regular positions with respect to one another.
[G. krystallos, clear ice, crystal]

crystal(s),

n a naturally produced solid. The ultimate units of the substance from which it was formed are arranged systematically.

crystal

a naturally produced angular solid of definite form.

crystal-associated hepatopathy
crystal-induced arthritis
piezoelectric crystal
the source of sound waves in ultrasonography.
radiographic c's
crystals on radiographs caused by faulty use of fixative, commonly excess acidity or insufficient washing of the film.
synovial crystal
tissue crystal
recognizable crystals in tissues occur in crystal-associated cholangiohepatopathy, zinc and oxalate poisoning.
urines c's
crystal violet
a brilliant organic deep purple dye.
crystal violet vaccine
an obsolete hog cholera (classical swine fever) vaccine.
References in periodicals archive ?
SIMPLE SIMULATIONS Investigators simulating crystal growth on computers face the challenge of determining whether their programs are generating authentic snowflake patterns.
Solid deuterium has the crystal structure of hexagonal closed pack, with much different sound velocities for the a- and the c-axes with the lattice parameters of about 0.
The genesis of the Charter-Leyden crystal in the eosinophilic leukocyte of man.
Charles, who declined to give his last name to The Advocate, flashes back to that night when a man he had met through the Internet gave him crystal meth during a sex date.
X-ray spacings in crystals, another great NBS specialty, and density of crystals of known chemical and isotopic composition yield the Avogadro constant by the XRCD (X-Ray Crystal Density) method.
But while metallic glasses usually result from any remaining melt that is cooled too rapidly to crystallize, this solid grew first as if it were a crystal, with an interface and at a composition different from the melt (40).
NDK is the leading company of crystal industry and has eight factories, five design centers and 20 sales sites in the world.
The precise arrangement of molecules within the crystal of a drug determines how fast it dissolves in the body and how much enters the bloodstream.
The Crystal Reports for Eclipse integration is validated through the Ready for IBM Rational software offering, which ensures that the integration meets the specifications laid out by IBM for interoperability and user experience.
Researchers describe a crystal that, when exposed to air, absorbs molecules such as carbon dioxide, carbon monoxide, oxygen, and nitrogen.
Surprisingly, 28 of the 120 peptide amide hydrogen atoms were found to be fully or partially protected from exchange after a year of soaking the crystal in a [D.
Director of Sales and Marketing for Touchstone Crystal, Tina Auffhammer says it is always rewarding to be in a profession that exemplifies what you believe in.