octet

octet
/ok tet"/, n.
1. a company of eight singers or musicians.
2. a musical composition for eight voices or instruments.
3. Pros. octave (def. 4).
4. any group of eight.
Also, octette.
[1860-65; OCT- + -et, as in duet]

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      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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Universalium. 2010.

Look at other dictionaries:

  • octet — octet …   Dictionnaire des rimes

  • octet — [ ɔktɛ ] n. m. • v. 1960; de oct « huit » ♦ Inform. Base composée de huit caractères binaires (⇒ bit) utilisée dans la plupart des langages machines. Un caractère alphanumérique peut être représenté par un octet. Une mémoire de plusieurs millions …   Encyclopédie Universelle

  • Octet — may refer to: Music Octet (music), ensemble consisting of eight instruments or voices, or composition written for such an ensemble Octet (Beethoven), 1793 composition by Ludwig van Beethoven Octet (Mendelssohn), 1825 composition by Felix… …   Wikipedia

  • octet — OCTÉT, octete, s.n. octeţi, s.m. 1. s.n. Formaţie compusă din opt persoane (instrumentişti sau cântăreţi) care execută împreună o lucrare muzicală; lucrare muzicală scrisă pentru această formaţie. 2. s.n. (chim.) Ansamblu format din opt electroni …   Dicționar Român

  • octet — oc*tet , n. [From L. octo eight, like E. duet, fr.L. duo. See {Octave}.] 1. (Mus.) A composition for eight parts, usually for eight solo instruments or voices. [1913 Webster] 2. A group of eight singers or eight musicians. [PJC] …   The Collaborative International Dictionary of English

  • octet — англ. [о/ктэт] octette фр. [октэ/т] octuor [октюо/р] октет …   Словарь иностранных музыкальных терминов

  • octet — ► NOUN 1) a group of eight musicians. 2) a musical composition for eight voices or instruments. 3) a group of eight lines of verse …   English terms dictionary

  • octet — or octette [äk tet′] n. [ OCT + (DU)ET] 1. any group of eight; esp., an OCTAVE (sense 2) 2. Music a) a composition for eight voices or eight instruments b) a group of eight performers of this, or any group of ei …   English World dictionary

  • Octet — Pour les articles homonymes, voir Octet (homonymie).  Ne doit pas être confondu avec byte. Multiples d’octets tels que définis par IEC 60027 2 …   Wikipédia en Français

  • Octet — Die Artikel Zweihundertfünfundfünfzig und Oktett (Informatik) überschneiden sich thematisch. Hilf mit, die Artikel besser voneinander abzugrenzen oder zu vereinigen. Beteilige dich dazu an der Diskussion über diese Überschneidungen. Bitte… …   Deutsch Wikipedia

  • octet — noun a) A group or set of eight of something. An octet of waiters sang her Happy Birthday . b) A group of eight musicians performing together. This is done by breaking down each set of permissions (user, group, and other) to represent an octet …   Wiktionary

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