faculan.

Brit.

/ˈfakjᵿlə/, U.S.

/ˈfækjələ/

Forms: Chiefly plural faculæ

/ˈfækjʊliː/.

Etymology: < Latin facula, diminutive of fac-em, fax torch.

Astronomy.

One of the bright or luminous spots or streaks on the surface of the sun, as distinguished from the dark spots or maculæ.

ΘΚΠ

the world > the universe > sun > solar activity > [noun] > mark on sun

facula1706

rice grain1864

flocculus1903

1706 Phillips's New World of Words (new ed.) Facula, a little Torch: Among Modern Astronomers, Faculæ, are certain Bright or Shining Parts, which they have sometimes observed upon or about the Surface of the Sun.

1794 R. J. Sulivan View of Nature II. 415 When they disappear, they are generally converted into faculæ or luminous spots.

1858 J. F. W. Herschel Outl. Astron. (ed. 5) vi. 246 Strongly marked..streaks, more luminous than the rest, called faculæ.

1881 Stokes in Nature No. 625. 595 Sometimes faculæ will break out at the surface of the sun where there is no spot.

This entry has not yet been fully updated (first published 1894; most recently modified version published online March 2022).

单词	facula
释义	faculan. Brit. /ˈfakjᵿlə/, U.S. /ˈfækjələ/ Forms: Chiefly plural faculæ /ˈfækjʊliː/. Etymology: < Latin facula, diminutive of fac-em, fax torch. Astronomy. One of the bright or luminous spots or streaks on the surface of the sun, as distinguished from the dark spots or maculæ. ΘΚΠ the world > the universe > sun > solar activity > [noun] > mark on sun facula1706 rice grain1864 flocculus1903 1706 Phillips's New World of Words (new ed.) Facula, a little Torch: Among Modern Astronomers, Faculæ, are certain Bright or Shining Parts, which they have sometimes observed upon or about the Surface of the Sun. 1794 R. J. Sulivan View of Nature II. 415 When they disappear, they are generally converted into faculæ or luminous spots. 1858 J. F. W. Herschel Outl. Astron. (ed. 5) vi. 246 Strongly marked..streaks, more luminous than the rest, called faculæ. 1881 Stokes in Nature No. 625. 595 Sometimes faculæ will break out at the surface of the sun where there is no spot. This entry has not yet been fully updated (first published 1894; most recently modified version published online March 2022). < n.1706
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