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
O开头单词
(共36,133个)
A saturated five-membered heterocycle having three carbon atoms, one silicon and one oxygen atom; an...
plural of oxasilolane
Any univalent radical derived from an oxathiadiazole
Any of three isomeric six-membered saturated heterocycles containing four carbon atoms, one oxygen a...
plural of oxathiane
A fungicide containing oxazole, pyrazole and thiazole groups
A six-membered unsaturated heterocycle containing three carbon atoms and one each of nitrogen, oxyge...
plural of oxathiazine
A six-membered unsaturated heterocycle containing three carbon atoms (one of them as a carbonyl grou...
plural of oxathiazinone
The unsaturated five-membered heterocycle having two carbon atoms, one oxygen atom, one sulfur atom,...
plural of oxathiazole
A five-membered, saturated heterocycle having two carbon atoms, and one each of nitrogen, sulfur and...
plural of oxathiazolidine
A six-membered, unsaturated heterocycle containing four carbon atoms, one sulfur and one oxygen atom...
The unsaturated six-membered heterocycle having four carbon atoms, one oxygen atom, one sulfur atom ...
plural of oxathiine
plural of oxathiin
A saturated three-membered heterocycle containing one carbon, one sulfur and one oxygen atoms
plural of oxathiirane