单词 | silver |
释义 | Word Frequency silver(ˈsɪlvə) noun 1. a. a very ductile malleable brilliant greyish-white element having the highest electrical and thermal conductivity of any metal. It occurs free and in argentite and other ores: used in jewellery, tableware, coinage, electrical contacts, and in electroplating. Its compounds are used in photography. Symbol: Ag; atomic no: 47; atomic wt: 107.8682; valency: 1 or 2; relative density: 10.50; melting pt: 961.93°C; boiling pt: 2163°C b. (as modifier) a silver coin ▶ Related adjective: argent2. coin made of, or having the appearance of, this metal 3. cutlery, whether made of silver or not 4. any household articles made of silver 5. photography any of a number of silver compounds used either as photosensitive substances in emulsions or as sensitizers 6. a. a brilliant or light greyish-white colour b. (as adjective) silver hair 7. short for silver medal adjective 8. well-articulated silver speech 9. (prenominal) denoting the 25th in a series, esp an annual series a silver wedding anniversary verb 10. (transitive) to coat with silver or a silvery substance to silver a spoon 11. to become or cause to become silvery in colour 12. to become or cause to become elderly Derived forms silverer (ˈsilverer) noun silvering (ˈsilvering) noun Word origin Old English siolfor; related to Old Norse silfr, Gothic silubr, Old High German silabar, Old Slavonic sirebro |
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