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)
Describing any heterocycle having one or more oxygen atoms in the ring
A heterocycle composed of a cycloheptene ring in which one of the methylene (-CH₂-) groups has been ...
plural of oxacycloheptene
A relatively unreactive water-miscible compound with desirable properties as an organic solvent.
Synonym of epoxide.
Any of several isomeric seven-membered, unsaturated heterocycles containing four carbon atoms, two n...
plural of oxadiazepine
A six-membered saturated heterocycle containing three carbon atoms, two nitrogen atoms and one oxyge...
plural of oxadiazinane
An unsaturated six-membered heterocycle having three carbon atoms, one oxygen atom, two nitrogen ato...
plural of oxadiazine
Any univalent radical derived from an oxadiazole
Any five-membered heterocycle having two carbon atoms, two nitrogen atoms, one oxygen atom, and two ...
plural of oxadiazole
A functional group consisting of oxadiazole fused to another ring compound.
A derivative of oxadiazole having a carbonyl group adjacent to the oxygen atom
plural of oxadiazolone
plural of oxadiazol
The herbicide 5-tert-butyl-3-(2,4-dichloro-5-isopropoxyphenyl)-1,3,4-oxadiazol-2(3H)-one
A particular fungicide.