ethylidene
/ә'θilidi:n/
📖 中文释义
- diethyl ether[化]乙缩醛
📘 English Definition（英文释义）
- An unsymmetrical, divalent, hydrocarbon radical, C2H4
- metameric with ethylene but written thus, CH3.CH to distinguish it from
- the symmetrical ethylene, CH2.CH2. Its compounds are derived from
- aldehyde. Formerly called also ethidene.