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[ok-ten-ee-uh l] /ɒkˈtɛn i əl/

occurring every eight years.
of or for eight years.
occurring every eight years
lasting for eight years


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  • Octet

    [ok-tet] /ɒkˈtɛt/ noun 1. a company of eight singers or musicians. 2. a musical composition for eight voices or instruments. 3. Prosody. (def 4). 4. any group of eight. /ɒkˈtɛt/ noun 1. any group of eight, esp eight singers or musicians 2. a piece of music composed for such a group 3. (prosody) another word […]

  • Octet rule

    noun in chemistry, the statement that when atoms combine to form molecules they generally each lose, gain, or share valence electrons until they attain or share eight; also called Lewis rule of eight

  • Octillion

    [ok-til-yuh n] /ɒkˈtɪl yən/ noun, plural octillions (as after a numeral) octillion. 1. a cardinal number represented in the U.S. by 1 followed by 27 zeros, and in Great Britain by 1 followed by 48 zeros. adjective 2. amounting to one octillion in number. /ɒkˈtɪljən/ noun 1. (in Britain and Germany) the number represented as […]

  • Octo-

    1. variant of : octosyllabic. combining form 1. eight: octosyllabic, octagon word-forming element, before vowels oct-, from comb. form of Latin octo “eight” (see octa-). octo- or oct- or octa- pref. Eight: octan.

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