He started testing fuels for their anti-knock qualities, using a single-cylinder test engine and expressing resistance to knocking by an H.U.C.R. (highest useful compression ratio) figure.
Source: wiktionary
Anti-knock
Synonyms for "anti-knock" (14 found)
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Closest matches (3)
Adjective(1 words)
Strong matches (4)
Related words (7)
Adjective(1 words)
Sample sentences
1 total sentences available.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.