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siliconeenUK
sil·i·cone S0406500 (sĭl′ĭ-kōn′)n. Any of a large group of oligomers and polymers based on the structural unit R2SiO, where R is an organic group, characterized by wide-range thermal stability, high lubricity, extreme water repellence, and physiological inertness and used in adhesives, lubricants, protective coatings, paints, electrical insulation, synthetic rubber, and prosthetic replacements for body parts.silicone (ˈsɪlɪˌkəʊn) n (Elements & Compounds) chem a. any of a large class of polymeric synthetic materials that usually have resistance to temperature, water, and chemicals, and good insulating and lubricating properties, making them suitable for wide use as oils, water-repellents, resins, etc. Chemically they have alternate silicon and oxygen atoms with the silicon atoms bound to organic groupsb. (as modifier): silicone rubber. See also siloxanesil•i•cone (ˈsɪl ɪˌkoʊn)
n. any of a number of polymers containing alternate silicon and oxygen atoms, whose properties are determined by the organic groups attached to the silicon atoms, and that are fluid, resinous, rubbery, extremely stable in high temperatures, and water-repellent: used as adhesives, lubricants, and hydraulic oils. [1905–10] sil·i·cone (sĭl′ĭ-kōn′) Any of a class of chemical compounds consisting of long chains of organic radicals that are each attached to silicon and oxygen atoms. Silicones are used to make adhesives, lubricants and synthetic rubber.Thesaurus| Noun | 1. | 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 insulationsilicone polymeratomic number 14, Si, 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 transistorsbouncing putty - a soft elastic silicone polymer that increases in elasticity with the application of force; used in the center of golf balls and as shock-absorbent paddingpolymer - a naturally occurring or synthetic compound consisting of large molecules made up of a linked series of repeated simple monomerssiloxane - any of a large class of compounds that have alternate silicon and oxygen atoms |
TranslationssiliconeenUK
silicone, polymerpolymer
, chemical compound with high molecular weight consisting of a number of structural units linked together by covalent bonds (see chemical bond). The simple molecules that may become structural units are themselves called monomers; two monomers combine to form a dimer,
..... Click the link for more information. in which atoms of silicon and oxygen alternate in a chain; various organic radicals, such as the methyl group, CH3, are bound to the silicon atoms. Silicones, which are unusually stable at extreme temperatures (both high and low), may occur as liquids, rubbers, resins, or greases. Silicones are prepared from halides of organic silicon compounds by decomposition. Such compounds are chosen and used in mixtures that allow the desired molecular weight and degree of cross-linking to be obtained in the final polymer. Water repellent, chemically inert, and stable at extreme temperatures, silicones are used as protective coatings and electrical insulators and in caulk. Implants consisting of silicone gel surrounded by hard silicone were used in reconstructive and cosmetic breast surgery until 1992. The safety of inserting silicone prostheses into the body was questioned in a large product-liability case involving breast implantsbreast implant,
saline- or silicone-filled prosthesis used after mastectomy as a part of the breast reconstruction process or used cosmetically to augment small breasts.
..... Click the link for more information. , but an Institute of Medicine panel concluded in 1999 that there was no evidence linking such implants with cancer, autoimmune diseases, and other serious illnesses. The use of such silicone implants for reconstructive surgery and for cosmetic surgery has been again approved by the FDA since 1998 and 2006 respectively. silicone[′sil·ə‚kōn] (materials) A fluid, resin, or elastomer; can be a grease, a rubber, or a foamable powder; the group name for heat-stable, water-repellent, semiorganic polymers of organic radicals attached to the silicones, for example, dimethyl silicone; used in adhesives, cosmetics, and elastomers. siliconeOne of the family of polymeric materials in which the recurring chemical group contains silicon and oxygen atoms as links in the main chain; derived from silica and methyl chloride; characterized by resistance to heat and a low coefficient of thermal expansion.silicone Chema. any of a large class of polymeric synthetic materials that usually have resistance to temperature, water, and chemicals, and good insulating and lubricating properties, making them suitable for wide use as oils, water-repellents, resins, etc. Chemically they have alternate silicon and oxygen atoms with the silicon atoms bound to organic groups b. (as modifier): silicone rubber siliconeA material that is used to make lubricants, sealants, adhesives, gels, coatings and breast implants. Silicone (pronounced "sill-uh-kone") is a compound of silicon (pronounced "sill-uh-kin") and other materials. See silicon.siliconeenUK
silicone [sil´ĭ-kōn] any of a large group of organic compounds comprising alternating silicon and oxygen atoms linked to organic radicals; uses have included wetting agents and surfactants, sealants, coolants, contact lenses, and surgical membranes and implants.silicone oil any of various fluid silicone polymers; some are injected into the vitreous of the eye to serve as a vitreous substitute during or after certain ophthalmologic surgical procedures, such as to prevent the reoccurrence of retinal detachment.sil·i·cone (sil'i-kōn), A polymer of organic silicon oxides, which may be a liquid, gel, or solid, depending on the extent of polymerization; formerly widely used in surgical implants, in intracorporeal tubes to conduct fluids, as dental impression material, as a grease or sealing substance, as a coating on the inside of glass vessels for blood collection, and in various ophthalmologic procedures.silicone (sĭl′ĭ-kōn′)n. Any of a large group of oligomers and polymers based on the structural unit R2SiO, where R is an organic group, characterized by wide-range thermal stability, high lubricity, extreme water repellence, and physiological inertness and used in adhesives, lubricants, protective coatings, paints, electrical insulation, synthetic rubber, and prosthetic replacements for body parts.silicone A family of inert, synthetic polymers composed of a repeating unit -R2Si-O-, in which -R is a simple alkyl group (a hydrocarbon). Silicones can be produced in various forms (e.g., adhesives, sponges, solid blocks and gels) and are widely used in medicine, given their stability, water repellency and inert nature.
One formerly popular silicone, polydimethylsiloxane, was enclosed in plastic bags of various sizes and shapes for use in plastic surgery to impart cosmetically acceptable contours to soft tissues, most commonly used in women for breast augmentation and in men for chin augmentation. The complications of such implants in trained hands are minimal and are confined to rupture of the bags and/or fibrosis. Subcutaneous, often illicit, injection of silicone for breast enlargement without the enclosing bag (as may be self-administered by transsexual males) may be associated with high fever, diffuse arthritis, renal failure, dry cough, haemoptysis, diffuse bilateral pulmonary infiltrates with patchy, ill-defined airspace consolidation, acute pneumonitis, hypoxemia, alveolitis (alveolar macrophages with silicone inclusions, neutrophils and eosinophils), decreased pulmonary function and granuloma formation.silicone A polymer composed of a repeating unit –R2Si–O– in which –R is a simple alkyl group–a hydrocarbon; silicones are produced in various forms–eg, adhesives, sponges, solid blocks, gels, and widely used in medicine, as they are stable, repel water and inert Medical devices Silicone is used for hydrocephalic shunts, pacemakers, implantable drug-delivery pumps, dialysis and chemotherapy ports, ostomy systems, tracheal and feeding tubes, central venous catheters, myringotomy tubes, cochlear implants, intraocular lenses, intra-aortic balloons, angioplasty devices, cardiac valves, vascular ports, various types of sheeting, and small-joint orthopedic devices 3 forms of silicone are used to fabricate implants: polymer–relatively hard; significant 'bleeding' is rare; elastomer–pliable; some silicone 'bleeding' occurs; gel–'bleeding' is common Plastic surgery Various formulations of silicone have been used in cosmetic surgery; one formerly popular silicone, polydimethylsiloxane, was enclosed in plastic bags of various sizes and shapes and implanted subcutaneously to impart cosmetically acceptable contours to soft tissues, most commonly in ♀ for breast augmentation, and in ♂ for chin augmentation; the complications of such implants in trained hands are minimal and confined to rupture of bags and/or fibrosis. See Breast implants, Human adjuvant disease, Mammoplasty. sil·i·cone (sil'i-kōn) A polymer of organic silicon oxides, which may be a liquid, gel, or solid, depending on the extent of polymerization; used in surgical implants, in intracorporeal tubes to conduct fluids, as dental impression material, as a grease or sealing substance, as a coating on the inside of glass vessels for blood collection, and in various ophthalmologic procedures. silicone Any polymeric (long-chain), organic compounds of silicon and oxygen in which each silicon atom is linked to an alkyl group. Silicones may be produced as oils, greases or rubbers. Silicone rubber (Silastic) is a valuable prosthetic surgical structural material as it is inert and permeable to oxygen and well tolerated by the tissues.sil·i·cone (sil'i-kōn) Polymer of organic silicon oxides, which may be a liquid, gel, or solid, depending on extent of polymerization; used in surgical implants, in intracorporeal tubes to conduct fluids, as dental impression material, as a grease or sealing substance, as a coating on inside of glass vessels for blood collection, and in various ophthalmologic procedures. Patient discussion about siliconeQ. Do any of you with FM have silicone breast implants, or have you ever had them? How about saline? My silicone implants expired on the surgeon's shelf before they went in my body. Both implants ruptured and disintegrated within 5 years of implantation. I was diagnosed with FM shortly after 2 surgeries to remove silicone goo. Just wondering if anyone else has made the connection. Thank you!A. As far as I know several studies failed to prove there is a connection between rupture of breast implants and fibromyalgia, as did the FDA conclude. Indeed I heard about one study that found this connection, but it seemed like a very problematic one.
You can read about this subject here (http://en.wikipedia.org/wiki/Breast_implants#Claims_of_systemic_illness_and_disease) More discussions about siliconesiliconeenUK
Synonyms for siliconenoun any of a large class of siloxanes that are unusually stable over a wide range of temperaturesSynonymsRelated Words- atomic number 14
- Si
- silicon
- bouncing putty
- polymer
- siloxane
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