octetn.

Brit.

/ɒkˈtɛt/, U.S.

/ɑkˈtɛt/

Forms: 1800s octett, 1800s octette, 1800s– octet.

Origin: A borrowing from Latin, combined with an English element. Etymons: Latin octo , -et suffix¹.

Etymology: < classical Latin octo eight (see octo- comb. form) + -et suffix¹. In sense 2 ultimately after Italian ottetto (1808 in a French linguistic context in the titles of musical compositions published in Prussia); compare in this sense German Oktett (in 19th cent. also as Octett ), French ottette (1874), octette (20th cent.), and also octuor n.

1. A group of eight lines of verse; spec. the first eight lines of a sonnet.

ΘΚΠ

society > leisure > the arts > literature > poetry > part of poem > [noun] > stanza > eight-lined stanza > octet of sonnet

octet1879

1879 Notes & Queries 7 June 459/1 Where is the octet called ‘Prospective Faith’?

1896 E. Gosse Crit. Kit-kats 7 No fault can be found with the structure of her [sc. Mrs. Browning's] octetts and sextetts.

1984 K. Foster Petrarch 40 Notice that in passing from octet to sestet, Petrarch shifts the focus from the poems themselves.

2. Music. (a) A composition for eight instruments or voices. (b) A group of eight singers or instrumentalists.

ΘΚΠ

society > leisure > the arts > music > musician > [noun] > company of musicians

consort1587

concert1688

trio1724

concert party1824

septet1831

quartet1840

sextet1858

octet1880

chamber ensemble1907

chamber group1907

camerata1967

society > leisure > the arts > music > piece of music > type of piece > pieces for specific number of performers > [noun] > octet

octuor1864

ottett1864

octet1880

1880 G. Grove Dict. Music II. 492 Octet, or Ottett (Ottetto), a composition for eight solo instruments... Mendelssohn's Octet for strings is a splendid example.

1886 Pall Mall Gaz. 7 Dec. 5/1 Schubert's Octet in F was to be repeated.

1904 R. L. McCardell Show Girl & Friends 35 You know everybody is just crazy about octets?

1974 Gramophone Nov. 916/2 The wind playing of the Vienna Octet is as suave as the music itself.

1990 Classic CD July 82/1 The performance by Hausmusik is fascinating, not least because it is the first time I have heard the Octet played in an authentic style.

3. gen. A group of eight persons or things.

ΘΚΠ

the world > relative properties > number > specific numbers > eight > [noun] > group of eight

ogdoas1642

octavea1806

octet1894

octonary1989

1894 Sc. Leader 16 Mar. 3 The octette which rowed against Oxford yesterday.

1904 Notes & Queries 5 Nov. 362 From the octet of dates, each given without any indication of dubiety.

2002 Boston Globe (Nexis) 5 Apr. e13 This octet fights with each other before pairing off and eventually bonding.

a. Physics and Chemistry. A stable group of eight electrons filling an electron shell of an atom.

ΘΚΠ

the world > matter > chemistry > chemical bonding > [noun] > bonds > electrons in bonding

octet1919

lone pair1923

1919 I. Langmuir in Jrnl. Amer. Chem. Soc. 41 888 After the very stable pairs..the next most stable arrangement of electrons is the group of 8 such as forms the outside layer in atoms of neon and argon. We shall call this stable group of 8 electrons the ‘octet’.

1965 D. Abbott Inorg. Chem. ii. 70 Some atoms can remain stable when surrounded by more than an octet of electrons (they expand their octets).

1988 F. A. Cotton & G. Wilkinson Adv. Inorg. Chem. (ed. 5) vi. 163 Boron also completes its octet by forming both anionic and cationic complexes.

1995 Science 9 June 1510/1 The 8 − N rule, where N is the group number, predicts that each atom participates in enough directed bonds to fill its valence shell with an octet of electrons.

b. Particle Physics. A multiplet (multiplet n. 2b) of eight subatomic particles.

ΘΚΠ

the world > matter > physics > quantum theory > electron spin > multiplet > [noun] > of specific number of particles

sextuplet1900

singlet1920

triplet1923

octet1961

nonet1963

decimet1964

nonuplet1969

1961 in M. Gell-Mann & Y. Ne'eman Eightfold Way (1964) i. 13 The most important prediction is..that the eight baryons should all have the same spin and parity and that the pseudoscalar and vector mesons should form ‘octets’, with possible additional ‘singlets’.

1968 M. S. Livingston Particle Physics xii. 213 Here [i.e. in SU(3) theory] the basic octet of states is identified with the nucleon, the Σ-particle triplet, the Λ⁰ particle, and the Ξ-particle doublet.

1982 Philos. Trans. (Royal Soc.) A. 304 23 The colour force is assumed to be carried by an octet of colour-anticolour massless vector gluons.

1992 Science 29 May 1287/2 The proton and neutron are the lightest members of an octet of ‘baryons’ with spin-½.

This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022).

单词	octet
释义	octetn. Brit. /ɒkˈtɛt/, U.S. /ɑkˈtɛt/ Forms: 1800s octett, 1800s octette, 1800s– octet. Origin: A borrowing from Latin, combined with an English element. Etymons: Latin octo , -et suffix¹. Etymology: < classical Latin octo eight (see octo- comb. form) + -et suffix¹. In sense 2 ultimately after Italian ottetto (1808 in a French linguistic context in the titles of musical compositions published in Prussia); compare in this sense German Oktett (in 19th cent. also as Octett ), French ottette (1874), octette (20th cent.), and also octuor n. 1. A group of eight lines of verse; spec. the first eight lines of a sonnet. ΘΚΠ society > leisure > the arts > literature > poetry > part of poem > [noun] > stanza > eight-lined stanza > octet of sonnet octet1879 1879 Notes & Queries 7 June 459/1 Where is the octet called ‘Prospective Faith’? 1896 E. Gosse Crit. Kit-kats 7 No fault can be found with the structure of her [sc. Mrs. Browning's] octetts and sextetts. 1984 K. Foster Petrarch 40 Notice that in passing from octet to sestet, Petrarch shifts the focus from the poems themselves. 2. Music. (a) A composition for eight instruments or voices. (b) A group of eight singers or instrumentalists. ΘΚΠ society > leisure > the arts > music > musician > [noun] > company of musicians consort1587 concert1688 trio1724 concert party1824 septet1831 quartet1840 sextet1858 octet1880 chamber ensemble1907 chamber group1907 camerata1967 society > leisure > the arts > music > piece of music > type of piece > pieces for specific number of performers > [noun] > octet octuor1864 ottett1864 octet1880 1880 G. Grove Dict. Music II. 492 Octet, or Ottett (Ottetto), a composition for eight solo instruments... Mendelssohn's Octet for strings is a splendid example. 1886 Pall Mall Gaz. 7 Dec. 5/1 Schubert's Octet in F was to be repeated. 1904 R. L. McCardell Show Girl & Friends 35 You know everybody is just crazy about octets? 1974 Gramophone Nov. 916/2 The wind playing of the Vienna Octet is as suave as the music itself. 1990 Classic CD July 82/1 The performance by Hausmusik is fascinating, not least because it is the first time I have heard the Octet played in an authentic style. 3. gen. A group of eight persons or things. ΘΚΠ the world > relative properties > number > specific numbers > eight > [noun] > group of eight ogdoas1642 octavea1806 octet1894 octonary1989 1894 Sc. Leader 16 Mar. 3 The octette which rowed against Oxford yesterday. 1904 Notes & Queries 5 Nov. 362 From the octet of dates, each given without any indication of dubiety. 2002 Boston Globe (Nexis) 5 Apr. e13 This octet fights with each other before pairing off and eventually bonding. 4. a. Physics and Chemistry. A stable group of eight electrons filling an electron shell of an atom. ΘΚΠ the world > matter > chemistry > chemical bonding > [noun] > bonds > electrons in bonding octet1919 lone pair1923 1919 I. Langmuir in Jrnl. Amer. Chem. Soc. 41 888 After the very stable pairs..the next most stable arrangement of electrons is the group of 8 such as forms the outside layer in atoms of neon and argon. We shall call this stable group of 8 electrons the ‘octet’. 1965 D. Abbott Inorg. Chem. ii. 70 Some atoms can remain stable when surrounded by more than an octet of electrons (they expand their octets). 1988 F. A. Cotton & G. Wilkinson Adv. Inorg. Chem. (ed. 5) vi. 163 Boron also completes its octet by forming both anionic and cationic complexes. 1995 Science 9 June 1510/1 The 8 − N rule, where N is the group number, predicts that each atom participates in enough directed bonds to fill its valence shell with an octet of electrons. b. Particle Physics. A multiplet (multiplet n. 2b) of eight subatomic particles. ΘΚΠ the world > matter > physics > quantum theory > electron spin > multiplet > [noun] > of specific number of particles sextuplet1900 singlet1920 triplet1923 octet1961 nonet1963 decimet1964 nonuplet1969 1961 in M. Gell-Mann & Y. Ne'eman Eightfold Way (1964) i. 13 The most important prediction is..that the eight baryons should all have the same spin and parity and that the pseudoscalar and vector mesons should form ‘octets’, with possible additional ‘singlets’. 1968 M. S. Livingston Particle Physics xii. 213 Here [i.e. in SU(3) theory] the basic octet of states is identified with the nucleon, the Σ-particle triplet, the Λ⁰ particle, and the Ξ-particle doublet. 1982 Philos. Trans. (Royal Soc.) A. 304 23 The colour force is assumed to be carried by an octet of colour-anticolour massless vector gluons. 1992 Science 29 May 1287/2 The proton and neutron are the lightest members of an octet of ‘baryons’ with spin-½. This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022). < n.1879
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