crystals

تعريف crystals في الإنجليزية الإنجليزية القاموس.: This refers to a type of electronic passive component which provides an accurate oscillation frequency with superior temperature characteristics to the circuit It is widely used in cordless telephones, quartz watches as well as other electronic equipment; Crystals are tuned to resonate at an exact frequency so that the transmitter (Tx) and receiver (Rx) operate on the same frequency Crystals may be purchased separately and in many different channels; Crystals are materials which has its molecules arranged in a specific, highly ordered internal pattern This pattern is reflected in the crystal's external structure which typically has symmetrical planar surfaces Many common substances, from salt to sugar, from diamonds to quartz form crystals They can be shaped so that they will vibrate at a specific frequency and are widely used in radio communications and computing devices New Agers believe that crystals posses healing energy See New Age; tartrate crystals can appear in red and white wine Tartaric acid is the principle acid in wine and it gradually precipitates as tartrate crystals as the wine matures Sometimes they can be seen clinging to the bottom of the cork The presence or tartrates is a sign of quality However, most uninformed people object to their presence and modern winemaking practise is to refrigerate white wines to hasten this precipitation so that the bottled wine will remain free of them; Crystals are tuned to resonate at an exact frequency so that the transmitter and receiver operate on the same frequency Crystals may be purchased separately and in many different channels; plural of crystal; Crystal-based technologies such as electronic circuitry, computers, and laser beams, now used in medical diagnostic equipment and surgical techniques, have revolutionized conventional medicine CAT scans, magnetic resonance imaging, mammograms, laser surgery, and microsurgery are commonplace today Newer applications are in development, including Kirlian photography to capture subtle energy emanating from the physical body (the aura), and sonic imagers to graphically display the vibrational tones emitted by the body in illness and health; particular crystals have different energies, if you dream of a particular crystal then check out the crystal page and see what its area of influence is, maybe you need to work with that particular stone; These are considered to have certain healing properties which relieve ailments of the body, mind, and heart For example, quartz crystals, worn on the body, are said by the Health and Fitness Arcade, to enhance the crystalline properties in the body, within the cells, circulatory system, fat tissue, lymph and nervous system; a homogenous solid formed by a repeating three-dimensional pattern of atoms, ions, or molecules and having fixed distances between constituent parts; a mineral, especially a transparent form of quartz - BACK>>; Attractive rock formations of natural or psychological power that should on no account be buried at ancient sites People who advocate this do not know the problems they cause archaeologically and otherwise, and are advocating wilful vandalism on a par to lighting fires, writing graffiti, etc , within a sacred area
Condy's crystals: potassium permanganate
Crystal: A female given name
Well, he said, name a girl Crystal and what's more likely? That she'll get a Ph.D. in biomechanics, or end up shaking her tail for tips?.
crystal: A solid (mineral quartz or otherwise) composed of an array of atoms possessing long-range order and arranged in a pattern which is periodic in three dimensions
crystal: A fine type of glassware, or the material used to make it
crystal: A piece of glimmering, shining mineral resembling ice or glass
crystal: crystal meth: methamphetamine hydrochloride
single crystals: plural form of single crystal
crystal: {n} a transparent stone, regular form of salt or other substance made from a solution by evaporation
crystal: {a} transparent, clear, bright
Crystal: The drug Crystal Meth (methamphetamine hydrochloride)
Crystal: given name, female
crystal: A regular three-dimensional form of a mineral with flat surfaces (faces) and specific angles between the faces The crystal form is an outward expression of the molecular structure of the mineral
crystal: Glasses and other containers made of crystal are referred to as crystal. Get out your best china and crystal. Any solid material whose atoms are arranged in a definite pattern and whose surface regularity reflects its internal symmetry. Each of a crystal's millions of individual structural units (unit cells) contains all the substance's atoms, molecules, or ions in the same proportions as in its chemical formula (see formula weight). The cells are repeated in all directions to form a geometric pattern, manifested by the number and orientation of external planes (crystal faces). Crystals are classified into seven crystallographic systems based on their symmetry: isometric, trigonal, hexagonal, tetragonal, orthorhombic, monoclinic, and triclinic. Crystals are generally formed when a liquid solidifies, a vapour becomes supersaturated (see saturation), or a liquid solution can no longer retain dissolved material, which is then precipitated. Metals, alloys, minerals, and semiconductors are all crystalline, at least microscopically. (A noncrystalline solid is called amorphous.) Under special conditions, a single crystal can grow to a substantial size; examples include gemstones and some artificial crystals. Few crystals are perfect; defects affect the material's electrical behaviour and may weaken or strengthen it. See also liquid crystal. Crystal Night crystal lattice Crystal Palace liquid crystal liquid crystal display rock crystal
crystal: Anything resembling crystal, as clear water, etc
crystal: a rock formed by the solidification of a substance; has regularly repeating internal structure; external plane faces
crystal: In biology refers to large, regular assembly of macromolecules such as proteins and nucleic acids It is possible to isolate and purify proteins or DNA in large quantity and let them crystallize in saturated solution These protein or DNA crystals contain millions of regularly aligned units that allow the determination of the electron distribution from X-ray diffraction studies Since atoms are distinguished by their specific numbers of electrons, their distribution allows an analysis of the atomic composition of proteins or DNA This electron distribution is then used to calculate the so called high resolution structure of molecules
crystal: A crystal is the solid form of a substance in which the atoms or molecules are arranged in a definite, repeating pattern The formation results in one of three ways: a liquid may cool or freeze into a solid; dissolved matter may precipitate out of a solution; or gases may condense into a solid form The external shape of the crystal -- smooth, symmetrically arranged, flat surfaces -- reflects its atomic structure
crystal: refers to transparent or translucent opal where the colours are sharp and visible below the surface
crystal: As in a 'crystal ball marble ' It is a clear glass marble, void of color Once manufactured with some amounts of lead to increase clarity However, EPA regulations now forbid the manufacture of glass using lead in the United States
crystal: the piezoelectric element(s) in a stack which expands and contracts in an alternating (charged) electrical field, thus inducing vibration nbsp; In low-powered ultrasonic cleaning tanks, crystals are sometimes bonded directly to the diaphragm (tank bottom or side wall)
crystal: In the past, glass of high degree of brilliance achieved by adding lead, or referring to cut glass Today, the term "crystal" can refer to the molten colorless glass which lies in the ceramic pot inside the furnace We also speak of "eco-kristall" A brilliant glass which does not contain lead Crystal, full and lead - Full lead crystal or crystal superieur contains 30% lead Half lead crystal contain 24% lead
crystal: colorless glass made of almost pure silica
crystal: Consisting of, or like, crystal; clear; transparent; lucid; pellucid; crystalline
crystal: a crystal is a solid particle in which the atoms, ions, or molecules are arranged in a regularly repeating, characteristic pattern or network of fixed points in space, with measurable distances between them 1
crystal: A regular repeat of molecules, usually with some sort of internal rotational symmetry Protein crystals are usually about 40- 60% solvent by weight and are thus fragile and sensitive to drying out [Robert L Campbell, Protein crystallography: Important points and definitions Dept of Biophysics and Biochemistry, Johns Hopkins Univ , US http: //biophysics med jhu edu/rlc/lect/definitions html
crystal: A solid composed of atoms, ions, or molecules arranged in a pattern that is periodic in three dimensions
crystal: It is bounded by plane surfaces, symmetrically arranged, and each species of crystal has fixed axial ratios
crystal: a solid formed by the solidification of a chemical and having a highly regular atomic structure
crystal: Solid with a regular geometric shape, having a characteristic internal structure and enclosed by symmetrically arranged plane surfaces, intersecting at definite and characteristic angles In crystals the particles (atoms, ions, or molecules) have a regular three-dimensional repeating arrangement in space This is called the crystal structure The crystal lattice is the arrangement of points in space at which the particles are positioned
crystal: The clean cover over the watch face Three types of crystals are commonly found in watches Acrylic crystal, a plastic, is inexpensive and shallow scratches can be buffed out Mineral crystal is comprised of several elements that are heat treated to create unusual hardness that aids in resisting scratches Sapphire crystal is the most expensive and durable, approximately three times harder than mineral crystals and 20 time harder than acrylic crystals A nonreflective coating on some sport styles prevents glare
crystal: A chunk of solid material in which all the atoms are lined up in an orderly pattern like rows of oranges in a grocery store Transistors are made out of semiconductor crystals Growing perfect germanium and silicon crystals with no defects or unwanted impurities is key to building a working transistor
crystal: Crystal is a high quality glass, usually with patterns cut into its surface. Some of the finest drinking glasses are made from lead crystal. crystal glasses
crystal: a crystalline element used as a component in various electronic devices
crystal: "When a mineral, or a chemical substance prepared by man, is bounded by regularly arranged natural plane surfaces, giving the specimen a definite geometrical form or outline, the substance is said to be a crystal " (Gems and Gem Minerals)
crystal: A crystal is a small piece of a substance that has formed naturally into a regular symmetrical shape. salt crystals. a single crystal of silicon. see also liquid crystal, liquid crystal display
crystal: The glass over the dial of a watch case
crystal: The part of a radio system that tells the transmitter to emit a particular frequency, and also tells the receiver to look for a particular frequency Crystals normally are packaged in pairs, because the receiver requires a different crystal than the transmitter You must use the same frequency crystals in the transmitter and receiver to make the car respond correctly to your commands
crystal: Crystal is a transparent rock that is used to make jewellery and ornaments. a strand of crystal beads
crystal: glassware made of quartz
crystal: a protective cover that protects the face of a watch glassware made of quartz a crystalline element used as a component in various electronic devices a rock formed by the solidification of a substance; has regularly repeating internal structure; external plane faces a solid formed by the solidification of a chemical and having a highly regular atomic structure
crystal: Smoky quartz, Pebble; also Brazilian pebble, under Brazilian
crystal: n the regular polyhedral form of a mineral which is the outward expression of a regularly repeating internal arrangement of atoms
crystal: a protective cover that protects the face of a watch
crystal: a regular repeat of molecules, usually with some sort of internal rotational symmetry Protein crystals are usually about 40-60% solvent by weight and are thus fragile and sensitive to drying out
crystal: A regular, periodic arrangement of atoms
crystal: The regular form which a substance tends to assume in solidifying, through the inherent power of cohesive attraction
crystal: The material of quartz, in crystallization transparent or nearly so, and either colorless or slightly tinged with gray, or the like; called also rock crystal
crystal: A body that is formed by the solidification of a chemical element, a compound, or a mixture and has a regularly repeating internal arrangement of its ATOMs and often external plane faces
crystal: A three-dimensional solid formed by regular repetition of the packing of atoms, ions, or molecules
crystal: See Flint glass
crystal: Cf
crystal: The transparent cover on a watch face made of glass crystal, synthetic sapphire or plastic Better watches often have a sapphire crystal which is highly resistant to scratching or shattering A-Z Index : D Return to Top depth alarm: An alarm on a divers' watch that sounds when the wearer exceeds a pre-set depth
crystal: {i} transparent mineral (especially a type of quartz); type of clear glass
crystal: The transparent cover over a watch dial - usually made of glass, crystal, or plastic
crystal: Ornamental vessels are made of it
crystal: A species of glass, more perfect in its composition and manufacture than common glass, and often cut into ornamental forms
crystal: In wireless microphones and digital devices, a frequency stabilizing device consisting of a small quartz crystal in a holder The natural vibrational frequency of the quartz can be made highly stable by external circuitry and is used to establish the operating frequency of wireless transmitters, receivers and other RF and digital equipment
crystal: The normal form of a solid state of matter which has a regular repeating pattern