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
R开头单词
(共59,864个)
The chemical element (symbol Rn, formerly Ro) with atomic number 86. It is an odorless, colorless, c...
A measure on the σ-algebra of Borel sets of a Hausdorff space that is locally finite and inner regul...
plural of Radon measure
A point in the intersection of convex hulls specified by Radon's theorem.
plural of Radon point
A small glass or gold tube, containing radon gas, implanted in a patient as radiotherapy.
plural of radon seed
An integral transform which takes a function defined on the plane to a function defined on the (two-...
plural of Radon transform
A theorem on convex sets, stating that any set of d + 2 points in Rᵈ can be partitioned into two set...
Any oxyanion of radon; any salt containing such an anion.
plural of radonate
A surname from Serbo-Croatian.
plural of Radoncic
In the Russian Orthodox Church, a commemoration of the departed observed on the second Tuesday or se...
Resistant to the harmful effects of radon.
plural of rado
The refitting of a ship.
plural of radoub
An orthorhombic-dipyramidal pistachio green mineral containing arsenic, copper, hydrogen, iron, and ...