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)
Any of several oxygen-containing heterocycles derived from norbornene, especially those that are use...
plural of oxanorbornene
A radical derived from oxanorbornene
A particular kind of anthelmintic that is used to cure intestinal parasites.
The tricyclic heterocycle consisting of two benzene rings fused to that of a dioxin ring
plural of oxanthrene
An ether formally formed from pentane by replacing a methylene group by an oxygen atom
plural of oxapentane
Synonym of osalmid.
The six-membered unsaturated heterocycle containing four carbon atoms, one oxygen atom, one phosphor...
plural of oxaphosphine
The unsaturated five-membered heterocycle having three carbon atoms, one oxygen atom, one phosphorus...
plural of oxaphosphole
A particular antispasmodic drug.
A psychoactive drug and research chemical of the tetracyclic chemical class.
A nonsteroidal anti-inflammatory drug.
An antiasthmatic drug.
Any retinoid that has a carbonyl group
plural of oxaretinoid
A sapphyrin in which a carbon atom has been replaced by an oxygen atom.