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[ok-tet] /ɒkˈtɛt/
a company of eight singers or musicians.
a musical composition for eight voices or instruments.
Prosody, octave (def 4).
any group of eight.
Also, octette.
1860-65; oct- + -et, as in duet Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for octet
  • As long as the outer orbitals form a full octet around its nucleus, chemical nirvana is within reach.
British Dictionary definitions for octet


any group of eight, esp eight singers or musicians
a piece of music composed for such a group
(prosody) another word for octave (sense 2)
(chem) a group of eight electrons forming a stable shell in an atom
Also (for senses 1, 2, 3) octette
Word Origin
C19: from Latin octo eight, on the model of duet
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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octet in Technology

jargon, networking
Eight bits. This term is used in networking, in preference to byte, because some systems use the term "byte" for things that are not 8 bits long.

The Free On-line Dictionary of Computing, © Denis Howe 2010
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Encyclopedia Article for octet

in chemistry, the eight-electron arrangement in the outer electron shell of the noble-gas atoms. This structure is held responsible for the relative inertness of the noble gases and the chemical behaviour of certain other elements. The chemical elements with atomic numbers close to those of the noble-gas elements tend to combine with other such elements by losing, gaining, or sharing electrons; as a result of these processes their atoms attain the eight-outer-electron configuration of the noble-gas atoms. This observation, published in separate papers (1916) by the German chemist Walther Kossel and the American chemist Gilbert Newton Lewis, is known as the rule of eight, or octet rule, and is used to determine the valence, or combining capacity, of several chemical elements.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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