octopoleadj.n.

Brit.

/ˈɒktə(ʊ)pəʊl/, U.S.

/ˈɑktəˌpoʊl/

Forms: 1900s– octapole, 1900s– octopole.

Origin: Formed within English, by compounding. Etymons: octo- comb. form, pole n.²

Etymology: < octo- comb. form + pole n.², with allusion to the fact that 2³ is 8). Compare earlier octupole n., and also earlier dipole n., quadrupole n.On the form in octa- see discussion s.v. octo- comb. form.

Physics.

A. adj. (attributive).

Of or relating to an octupole or octupoles; that is an octupole (see octupole n.). Frequently as octopole moment (cf. moment n. 8c).

ΘΚΠ

the world > matter > physics > quantum theory > quantum mechanics > quantum electrodynamics > [adjective] > relating to specific moments

quadrupole1922

quadripole1927

multipole1929

octopole1932

monopolar1948

sextupole1950

octupole1954

monopole1962

hexadecapole1969

1932 Proc. Royal Soc. A. 138 667 We..assume..that a given γ-ray will have either a quadripole or a dipole field associated with it, but that octopole, etc., lines do not occur.

1939 Proc. Royal Soc. A. 170 219 The interaction of a nucleus with a spin, an electric quadrupole moment and a magnetic octopole moment.

1950 D. Halliday Introd. Nucl. Physics ii. 57 Gamma-emission processes can be classified as to multipole order; we speak, for example, of dipole, quadrupole, octopole, and still higher-order transitions.

1989 C. Will in P. Davies New Physics ii. 28/1 The Earth has an equatorial bulge and associated gravitational quadrupole, octapole, and higher multipole fields.

B. n.

= octupole n.

ΘΚΠ

the world > matter > physics > quantum theory > quantum mechanics > quantum electrodynamics > [noun] > single charge or pole > system of > of specific order

quadrupole1921

quadripole1927

octupole1929

octopole1961

hexadecapole1969

1961 A. Abragam Princ. Nucl. Magn. vi. 170 The existence of magnetic octopoles has been established by atomic beam methods.

1986 M. Rigby et al. Forces between Molecules i. 5 An arrangement in which the octopole (n = 3) is the lowest non-zero multipole is illustrated.

This is a new entry (OED Third Edition, March 2004; most recently modified version published online March 2022).

单词	octopole
释义	octopoleadj.n. Brit. /ˈɒktə(ʊ)pəʊl/, U.S. /ˈɑktəˌpoʊl/ Forms: 1900s– octapole, 1900s– octopole. Origin: Formed within English, by compounding. Etymons: octo- comb. form, pole n.² Etymology: < octo- comb. form + pole n.², with allusion to the fact that 2³ is 8). Compare earlier octupole n., and also earlier dipole n., quadrupole n.On the form in octa- see discussion s.v. octo- comb. form. Physics. A. adj. (attributive). Of or relating to an octupole or octupoles; that is an octupole (see octupole n.). Frequently as octopole moment (cf. moment n. 8c). ΘΚΠ the world > matter > physics > quantum theory > quantum mechanics > quantum electrodynamics > [adjective] > relating to specific moments quadrupole1922 quadripole1927 multipole1929 octopole1932 monopolar1948 sextupole1950 octupole1954 monopole1962 hexadecapole1969 1932 Proc. Royal Soc. A. 138 667 We..assume..that a given γ-ray will have either a quadripole or a dipole field associated with it, but that octopole, etc., lines do not occur. 1939 Proc. Royal Soc. A. 170 219 The interaction of a nucleus with a spin, an electric quadrupole moment and a magnetic octopole moment. 1950 D. Halliday Introd. Nucl. Physics ii. 57 Gamma-emission processes can be classified as to multipole order; we speak, for example, of dipole, quadrupole, octopole, and still higher-order transitions. 1989 C. Will in P. Davies New Physics ii. 28/1 The Earth has an equatorial bulge and associated gravitational quadrupole, octapole, and higher multipole fields. B. n. = octupole n. ΘΚΠ the world > matter > physics > quantum theory > quantum mechanics > quantum electrodynamics > [noun] > single charge or pole > system of > of specific order quadrupole1921 quadripole1927 octupole1929 octopole1961 hexadecapole1969 1961 A. Abragam Princ. Nucl. Magn. vi. 170 The existence of magnetic octopoles has been established by atomic beam methods. 1986 M. Rigby et al. Forces between Molecules i. 5 An arrangement in which the octopole (n = 3) is the lowest non-zero multipole is illustrated. This is a new entry (OED Third Edition, March 2004; most recently modified version published online March 2022). < adj.n.1932
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