| 单词 | doublet |
| 释义 | Word Frequency doublet(ˈdʌblɪt) noun 1. (formerly) a man's close-fitting jacket, with or without sleeves (esp in the phrase doublet and hose) 2. a. a pair of similar things, esp two words deriving ultimately from the same source, for example reason and ratio or fragile and frail b. one of such a pair 3. jewellery a false gem made by welding a thin layer of a gemstone onto a coloured glass base or by fusing two small stones together to make a larger one 4. physics a. a multiplet that has two members b. a closely spaced pair of related spectral lines 5. (plural) two dice each showing the same number of spots on one throw 6. physics two simple lenses designed to be used together, the optical distortion in one being balanced by that in the other Word origin C14: from Old French, from double |
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