| SCR | Schick conversion rate; short consensus repeat; silicon-controlled rectifier; skin conductance respo... |
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| SCS | Saethre-Chotzen syndrome; shared computer system; silicon-controlled switch; Society of Clinical Sur... |
| Si | the most anterior point on the lower contour of the sella turcica [point]; silicon |
| SM | Master of Science; sadomasochism; self-monitoring; silicon microphysiometer; simple mastectomy; skim... |
| Si | Silicon |
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| SiC | Silicon carbide |
| silicon | <chemistry, element> A nonmetalic element analogous to carbon. It always occurs combined in nature, and is artificially obtained in the free state, usually as a dark brown amorphous powder, or as a dark crystalline substance with a meetallic luster. Its oxide is silica, or common quartz, and in this form, or as silicates, it is, next to oxygen, the most abundant element of the earth's crust. Silicon is characteristically the element of the mineral kingdom, as carbon is of the organic world. Abbreviation: Si Atomic weight: 28. Synonym: silicium. See: Silica. Source: Websters Dictionary (01 Mar 1998) |
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| silicon compounds | Inorganic compounds that contain silicon as an integral part of the molecule. (12 Dec 1998) |
| silicon dioxide | <chemical> Silica. Transparent, tasteless crystals found in nature as agate, amethyst, chalcedony, cristobalite, flint, sand, quartz, and tridymite. The compound is insoluble in water or acids except hydrofluoric acid. Chemical name: Silica (12 Dec 1998) |
| silicone | Any of many polymers made up of alternating oxygen and silicon atomscombined with other organic groups. Silicone can be an oil, grease, gelor plastic, but all forms are resistant to heat, water and will notconduct electricity. It is used for a huge number of uses in industry (lubricants, paints, adhesives, coolants, etc.) Silicone is used inmedicine to replace body parts, and its use in breast implants has comeunder fire because there is evidence that these appliances may leak, andfurther evidence that leaked silicone may cause autoimmune disorders. (09 Oct 1997) |
| silicone elastomers | Polymers of silicone having properties similar to those of vulcanised natural rubber, namely the ability to be stretched to at least twice their original length and to retract very rapidly to approximately their original length when released. (12 Dec 1998) |
| silicone implant | Implant composed of silicone; common form of breast implant for augmentation. (05 Mar 2000) |
| silicone oils | Organic siloxanes which are polymerised to the oily stage. The oils have low surface tension and density less than 1. They are used in industrial applications and in the treatment of retinal detachment, complicated by proliferative vitreoretinopathy. (12 Dec 1998) |
| silicones | Any organosiloxane polymer in which the structural unit is usually -r2si-o-, where r is a monovalent organic radical. Physical properties of silicones depend on the size and type of the radical (methyl, phenyl), the r:si ratio, and the molecular configuration of the polymer (linear, cyclic, degree of crosslinking). (12 Dec 1998) |
| siliconisation | Noncovalent coating of surface with a layer of silicone oil making it less adhesive or reactive. See: silanising. (18 Nov 1997) |
| colloidal silicon dioxide | A submicroscopic fumed silica prepared by the vapor-phase hydrolysis of a silicon compound; used as a tablet diluent and as a suspending and thickening agent. (05 Mar 2000) |
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Synonyms :
Synonyms : Compounds, Silicon
Synonyms : Aerosil, Aerosil 380, Cristobalite, Quso G-32, Quso G32, Sand, Tridymite, Dioxide, Silicon
Synonyms : Elastosil, Microfil, SE-30, Elastosils, Microfils, SE 30, SE30, Silicone Elastomer
Synonyms : Gels, Silicone
| silicon |
a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors
Ãâó: wordnet.princeton.edu/perl/webwn
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| silicon carbide |
an extremely hard blue-black crystalline compound (SiC) used as an abrasive and a heat refractory material; crystals of silicon carbide can be used as semiconductors
Ãâó: wordnet.princeton.edu/perl/webwn
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| silicone |
any of a large class of siloxanes that are unusually stable over a wide range of temperatures; used in lubricants and adhesives and coatings and synthetic rubber and electrical insulation
Ãâó: wordnet.princeton.edu/perl/webwn
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| silicon dioxide |
silica: a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechartelierite
Ãâó: wordnet.princeton.edu/perl/webwn
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| silicon |
Silicon is the chemical element in the periodic table that has the symbol Si and atomic number 14. A tetravalent metalloid, silicon is less reactive than its chemical analog carbon. It is the second most abundant element in the Earth's crust, making up 25.7% of it by weight. It occurs in clay, feldspar, granite, quartz and sand, mainly in the form of silicon dioxide (also known as silica) and silicates (compounds containing silicon, oxygen and metals). ...
Ãâó: en.wikipedia.org/wiki/Silicon
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| silicon | a tetravalent nonmetallic element |
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| silicon | a bronze with 2-3% silicon that is resistant to corrosion |
| silicon | an extremely hard blue-black crystalline compound (SiC) used as an abrasive and a heat refractory material |
| silicon | electronic equipment consisting of a small crystal of a silicon semiconductor fabricated to carry out a number of electronic functions in an integrated circuit |
| silicon | a white or colorless vitreous insoluble solid (SiO2) |
| silicon | a white or colorless vitreous insoluble solid (SiO2) |
| silicon | a region in California south of San Francisco that is noted for its concentration of high-technology industries |
| silicon | any of a large class of siloxanes that are unusually stable over a wide range of temperatures |
| silicon | any of a large class of siloxanes that are unusually stable over a wide range of temperatures |
| silicon | a polymeric silicone compound |
| silicon | made from silicone elastomers |
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