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English Words Starting With S
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- silicified wood/ˌsɪlɪsɪfaɪd ˈwʊd/A type of fossil where the organic material of wood has been replaced by silica (minerals like quartz), turning it to stone while retaining its original structure.nounC2
- silicify/sɪˈlɪs.ɪ.faɪ/To convert into or impregnate with silica.verbverb-ambitransitiveVery Low
- silicium/sɪˈlɪsɪəm/The chemical element with atomic number 14 (symbol Si), a brittle, crystalline solid with a metallic lustre, constituting a major component of minerals like quartz and sand.nounLow
- silicle/ˈsɪlɪk(ə)l/A short silique (seed pod) in plants of the Brassicaceae (mustard) family, typically as broad as or broader than long.nounVery Low
- silicon/ˈsɪlɪkən/A chemical element (Si), a hard, brittle crystalline solid with a blue-grey metallic lustre, known for its semiconductor properties and used extensively in electronics and computing hardware.nounC1
- silicon alley/ˌsɪl.ɪ.kən ˈæl.i/An area within a city, particularly a district in New York City, where there is a high concentration of technology, internet, media, and software companies.nounC2
- silicon carbide/ˌsɪl.ɪ.kən ˈkɑː.baɪd/A synthetic compound of silicon and carbon (chemical formula SiC), known for its exceptional hardness and thermal stability.nounC1-C2
- silicon chip/ˈsɪlɪkən tʃɪp/A small piece of silicon containing an integrated circuit, used in electronic devices.nounMedium
- silicon fen/ˈsɪlɪkən fɛn/A region in Cambridgeshire, England, known for its concentration of high-technology businesses, analogous to Silicon Valley in the United States.nounLow
- silicon glen/ˌsɪlɪkən ˈɡlɛn/A nickname for the high-tech region of Scotland, particularly the Central Belt, analogous to Silicon Valley in California.nounRare / Historical
- silicon rectifier/ˈsɪlɪkən ˌrɛktɪfaɪə/A semiconductor device made from silicon that allows electric current to flow in only one direction, used to convert alternating current (AC) to direct current (DC).nounTechnical Term
- silicon tetrachloride/ˌsɪlɪkən ˌtetrəˈklɔːraɪd/A volatile, colorless, corrosive liquid compound (SiCl₄) consisting of one silicon atom and four chlorine atoms.nounC2 (Specialist Technical)
- silicon tetrafluoride/ˈsɪlɪkən ˌtɛtrəˈflʊəraɪd/A volatile, inorganic chemical compound with the formula SiF₄, formed by silicon and fluorine.nounVery low (Specialised technical term)
- silicon valley/ˌsɪl.ɪ.kən ˈvæl.i/A nickname for the southern San Francisco Bay Area of California, USA, historically known as the global center for the semiconductor industry and now as the world's primary hub for high‑technology innovation, venture capital, and startup culture.nounC1‑C2
- silicon-controlled rectifier/ˈsɪlɪkən kənˌtrəʊld ˈrɛktɪfaɪə/A semiconductor device, similar to a thyristor, that controls the flow of electric current, allowing it to flow in only one direction.nounLow
- silicone/ˈsɪlɪkəʊn/A synthetic polymer material consisting of silicon, oxygen, carbon, and hydrogen, known for its heat resistance, flexibility, and water-repellent properties.nounB2
- silicone rubber/ˈsɪlɪkəʊn ˈrʌbə/A synthetic elastomer made from silicone polymers, known for heat resistance, flexibility and electrical insulation properties.nounB2/C1
- silicosis/ˌsɪlɪˈkəʊsɪs/A chronic lung disease caused by inhaling silica dust, leading to inflammation, scarring, and shortness of breath.nounC2
- silicula/sɪˈlɪkjʊlə/A type of dry fruit in plants, especially in the mustard family (Brassicaceae), that is short, broad, and flattened, typically containing several seeds.nounVery rare/Technical
- siliqua/sɪˈliːkwə/A long, narrow seed pod, typically splitting into two halves, characteristic of plants in the mustard family (Brassicaceae).nounC2+
Showing 6241–6260 of 15552 words.