Jisho

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せい
Noun, Noun which may take the genitive case particle 'no'
1. anti-knocking
Wikipedia definition
2. Antiknock agentAn antiknock agent is a gasoline additive used to reduce engine knocking and increase the fuel's octane rating. The mixture known as gasoline, when used in high compression internal combustion engines, has a tendency to ignite early (pre-ignition or detonation) causing a damaging "engine knocking" (also called "pinging" or "pinking") noise. Early research into this effect was led by A.H. Gibson and Harry Ricardo in England and Thomas Midgley, Jr. and Thomas Boyd in the United States.
Read “Antiknock agent” on English Wikipedia
Read “アンチノック性” on Japanese Wikipedia
Read “Antiknock agent” on DBpedia

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