octavaladj.
/ɒkˈteɪv(ə)l/, U.S. /ɑkˈteɪv(ə)l/ Of or relating to an octave; proceeding by octaves, or by eights.Often contrasted with decimal.
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the world > relative properties > number > specific numbers > eight > [adjective] > relating to, consisting of, or proceeding by
octonary1615
octonal1860
octaval1884
1884 Science 31 Oct. 415/2 An octaval system of numeration, with its possible subdivision, 8, 4, 2, 1, would have been originally better.
1965 Hispanic Amer. Hist. Rev. 45 626 A more serious problem, but one which was finally resolved, was the changeover from the old Spanish octaval system to the decimal system.
1995 Buffalo (N.Y.) News 25 Aug. g 33 She mixes power tracks with funky ditties, and varies her sound from octaval belting..to a half-whisper.
This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022).
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adj.1884