| 单词 | silicon valleys |
| 释义 | silica /silˈi-kə/nounSilicon dioxide or silicic anhydride, occurring in nature as quartz, chalcedony, etc, and (amorphous and hydrated) as opal adjectiveComposed of silica ORIGIN: L silex, silicis flint silˈicate noun
To combine, coat, or impregnate with silica or silicates siliceous or silicious /-ishˈəs/ adjective Of or containing silica silicic /-isˈik/ adjective Relating to, or obtained from, silica (silicic acid a general name for a group of acids, eg orthosilicˈic, H4SiO4; metasilicˈic, H2SiO3) silicicolous /-sikˈ/ adjective (L colere to cultivate, inhabit) growing on siliceous soil silˈicide /-sīd/ noun A compound of silicon and another element silicifˈerous adjective Containing silica silicification /si-lis-i-fi-kāˈshən/ noun silicified /-lisˈ/ adjective silicˈify transitive verb
To become siliceous silˈicon /-kon or -kən/ noun A non-metallic element (symbol Si; atomic no 14), forming grey crystals or brown amorphous powder and having semiconducting properties (formerly called silicium /-lisˈ or -lishˈ/) silˈicone noun Any of a number of extremely stable organic derivatives of silicon, used in rubbers, lubricants, polishes, etc silicosis /-kōˈsis/ noun A lung disease caused by the prolonged inhalation of silica dust silicotˈic noun and adjective silica gel noun An absorbent form of silica used as a drying agent, and as a catalyst in many chemical processes silicon carbide noun A hard, crystalline compound, widely used as an abrasive and in cutting, grinding and polishing instruments silicon chip see under chip silicon valley noun A district or area in which there is a concentration of information technology industries (from the orig Silicon Valley in California) |
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