Planckianadj.

Brit.

/ˈplaŋkɪən/, U.S.

/ˈplɑŋkiᵻn/,

/ˈplæŋkiᵻn/

Origin: From a proper name, combined with an English element. Etymons: proper name Planck , -ian suffix.

Etymology: < the name of Max Karl Ernst Ludwig Planck (see Planck n.) + -ian suffix.

Physics.

Of, relating to, or investigated in the work of Planck; esp. predicted by or behaving in accordance with Planck's law of black body radiation.

ΘΚΠ

the world > matter > physics > electromagnetic radiation > [adjective] > relating to black body

Planckian1922

1922 Jrnl. Optical Soc. Amer. 6 560 Average noon sunlight..corresponds roughly to a black body temperature of 5000° K. the distribution not being strictly Planckian.

1956 H. H. Emsley Aberrations of Thin Lenses x. 303 A black body or Planckian radiator.

1972 Nature 28 Apr. 448/2 It seems improbable that the whole spectrum is Planckian, because the total power of such radiation would be..10⁴² erg s^–1.

1992 Sci. Amer. Aug. 38/3 The radiation is continuously distributed over different frequencies according to the law discovered by Planck in 1900. The Planckian distribution has a characteristic shape for every temperature.

This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022).

单词	planckian
释义	Planckianadj. Brit. /ˈplaŋkɪən/, U.S. /ˈplɑŋkiᵻn/, /ˈplæŋkiᵻn/ Origin: From a proper name, combined with an English element. Etymons: proper name Planck , -ian suffix. Etymology: < the name of Max Karl Ernst Ludwig Planck (see Planck n.) + -ian suffix. Physics. Of, relating to, or investigated in the work of Planck; esp. predicted by or behaving in accordance with Planck's law of black body radiation. ΘΚΠ the world > matter > physics > electromagnetic radiation > [adjective] > relating to black body Planckian1922 1922 Jrnl. Optical Soc. Amer. 6 560 Average noon sunlight..corresponds roughly to a black body temperature of 5000° K. the distribution not being strictly Planckian. 1956 H. H. Emsley Aberrations of Thin Lenses x. 303 A black body or Planckian radiator. 1972 Nature 28 Apr. 448/2 It seems improbable that the whole spectrum is Planckian, because the total power of such radiation would be..10⁴² erg s^–1. 1992 Sci. Amer. Aug. 38/3 The radiation is continuously distributed over different frequencies according to the law discovered by Planck in 1900. The Planckian distribution has a characteristic shape for every temperature. This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022). < adj.1922
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