tetraethyl lead
/ˌtetrəˈiːθaɪl/noun
mass noun
1- Chemistry a toxic colourless oily liquid made synthetically and used as an anti-knock agent in leaded petrol【化】四乙铅（用作汽油的抗爆剂）。
1.1
- Chem. formula: Pb(C2H5)4.化学分子式： Pb(C2H5)4.