Wiktionary英语词典
收录 1,329,381 个英语单词，来自Wiktionary的英文释义、IPA发音、词源、词形变化和词汇关系数据
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A surname.
A surname.
A surname.
plural of Rychlik
A surname.
A surname.
plural of Ryckman
A surname from Old English.
plural of Rycroft
A surname from Polish.
plural of Ryczek
A village in Lakes parish, South Lakeland district, Cumbria, England (OS grid ref NY3606).
A surname.
A suburb of Sydney in the Parramatta council area, New South Wales, Australia.
A surname from Swedish.
Any atom which has a single valence electron in a shell well outside any other electrons in the aton...
plural of Rydberg atom
A universal scaling factor for all spectroscopic transitions.
plural of Rydberg constant
A formula used in atomic physics to describe the wavelengths of spectral lines of many chemical elem...