research octane number

noun

An octane number, used by the American Society for Testing and Materials to estimate the antiknock characteristics of a fuel at low engine speeds.

Similar
RON
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Meanings

nounresearch octane number (plural research octane numbers)

plural research octane numbers

  1. An octane number, used by the American Society for Testing and Materials to estimate the antiknock characteristics of a fuel at low engine speeds.

    Synonyms: RON

Synonyms & antonyms

nounAn octane number, used by the American Society for Testing and Materials to estimate the antiknock characteristics of a fuel at low engine speeds.

Similar
RON
Cite this entry
APA

research octane number. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/research%20octane%20number

MLA

“research octane number.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/research%20octane%20number. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “research octane number,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/research%20octane%20number.

Source: research octane number on Wiktionary, CC BY-SA 4.0.