tetraethyl

American  

[te-truh-eth-uhl] / ˌtɛ trəˈɛθ əl /

adjective

Chemistry.

1. containing four ethyl groups.

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Etymology

Origin of tetraethyl

tetra- + ethyl

Example Sentences

Norway decided to ban lead from paint half a century before the U.S., in the 1920s, the same period when U.S. public health officials were debating whether to allow General Motors to use tetraethyl lead in gasoline as an additive.

From Salon

In 1921, General Motors engineers discovered that tetraethyl lead could make internal combustion engines run more smoothly and reduce engine knock.

From Salon

She noted that the fuel and vehicle industries' rush to adopt tetraethyl lead, despite its grave public health implications, led to tremendous damage.

From Salon

Similarly, several decades later, the introduction of tetraethyl lead into gasoline raised environmental concerns, but was tolerated as a necessary lubricant for the adoption of the internal combustion engine.

From New York Times

On the other hand, lead was easy to extract and work, and almost embarrassingly profitable to produce industrially–and tetraethyl lead did indubitably stop engines from knocking.

From Literature