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单词 magnetoid
释义

magnetoidn.

Brit. /ˈmaɡnᵻtɔɪd/, U.S. /ˈmæɡnəˌtɔɪd/
Origin: Formed within English, by derivation; modelled on a Russian lexical item. Etymons: magnet n., -oid suffix.
Etymology: < magnet n. + -oid suffix, after Russian magnitoid (L. M. Ozernoj 1966, in Astron. žurnal 43 301).
Astronomy.
A hypothetical supermassive rotating body of magnetized plasma, postulated to account for the huge energy output of quasars. Cf. spinar n.
ΘΚΠ
the world > the universe > diffused matter > [noun] > magnetoid
magnetoid1966
1966 tr. L. M. Ozernoj in Astron. Žurnal 43 301 A quasistationary configuration—magnetoid is considered for the construction of an idealized scheme of multivarious phenomena occurring in galactic nuclei and especially in the central parts of quasistellar radio sources.
1970 Nature 19 Dec. 1175/1 The most plausible hypothesis to explain the activity of QSOs and galactic nuclei seems to be the so-called ‘magnetoid’ hypothesis.
1977 Astron. & Astrophysics 56 166/2 We will consider the simplest realization of a magnetoid i.e. in the form of a supermassive oblique rotator..having solid-body rotation and quasi-dipole magnetic field.
1984 Q. Jrnl. Royal Astron. Soc. 25 28 We use the term ‘spinar’ even though the term ‘magnetoid’ would be equally well applicable.
This entry has been updated (OED Third Edition, March 2000; most recently modified version published online March 2022).

magnetoidadj.

Origin: Formed within English, by derivation. Etymons: magnet n., -oid suffix.
Etymology: < magnet n. + -oid suffix. N.E.D. (1904) gives the pronunciation as (mægnī·toid) /mæɡˈniːtɔɪd/.
Obsolete. rare.
Resembling or characteristic of a magnet.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > magnetism > [adjective] > having characteristics of
magnetoid1851
1851 J. O. N. Rutter (title) Magnetoid currents, their forces and directions; with a description of the magnetoscope.
This entry has been updated (OED Third Edition, March 2000; most recently modified version published online June 2018).
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n.1966adj.1851
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