| 1. | a company of eight singers or musicians. |
| 2. | a musical composition for eight voices or instruments. |
| 3. | Prosody. octave (def. 4). |
| 4. | any group of eight. |
| 1. | Music.
|
| 2. | a pipe-organ stop whose pipes give tones an octave above the normal pitch of the keys used. |
| 3. | a series or group of eight. |
| 4. | Also called octet. Prosody.
|
| 5. | the eighth of a series. |
| 6. | Ecclesiastical.
|
| 7. | one eighth of a pipe of wine. |
| 8. | Fencing. the eighth of eight defensive positions. |
| 9. | pitched an octave higher. |

oc·tet (ŏk-tět') n.
[Alteration (influenced by octo- and duet) of Italian ottetto, from otto, eight, from Latin octō; see oktō(u) in Indo-European roots.] |
An interval between musical notes in which the higher note is six whole tones, or twelve half tones, above the lower. From the standpoint of physics, the higher note has twice the frequency of the lower. Notes that are an octave apart, or a whole number of octaves apart, sound in some ways like the same note and have the same letter for their names.
octet 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.
(1995-03-03)
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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