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Definition of Nebulium
1. Noun. (astronomy physics) A supposed element proposed as a result of spectral analysis of light from a nebula; the emission lines concerned are now known to be due to doubly-ionized oxygen ¹
¹ Source: wiktionary.com
Definition of Nebulium
1. a hypothesized element now discredited [n -S]
Lexicographical Neighbors of Nebulium
Literary usage of Nebulium
Below you will find example usage of this term as found in modern and/or classical literature:
1. Science by American Association for the Advancement of Science (1917)
"27); the largest one of hydrogen, fourteen seconds of arc in diameter; a smaller
one, corresponding to the first green line of the element nebulium, ..."
2. Problems in Astrophysics by Agnes Mary Clerke (1903)
"In other words, hydrogen is of seven times its normal lustre comparatively to
nebulium. Further, the three lines, when viewed through an open slit, ..."
3. Some Physico-chemical Themes by Alfred Walter Stewart (1922)
"Lyra some of the nebulium lines are emitted by the interior of the nebula, others
by its exterior, which shows that the so-called ..."
4. Science by American Association for the Advancement of Science (1917)
"Also, Campbell has found that in the nebula NGC Index 418, situated in the southern
part of the constellation of Orion, the nebulium spectrum is found ..."
5. Geology by Thomas Chrowder Chamberlin, Rollin D. Salisbury (1905)
"There is thus much of ground, therefore, for linking together in genetic studies
these stars, the Novce, and the helium-hydrogen-nebulium nebula*, ..."
6. Geology by Thomas Chrowder Chamberlin, Rollin D. Salisbury (1906)
"There is thus much of ground, therefore, for linking together in genetic studies
these stars, the Nova, and the helium-hydrogen-nebulium nebula*, ..."
7. A System of Physical Chemistry by William Cudmore McCullagh Lewis, James Rice (1921)
"Soc., 72, 49, 1911) has calculated the chief spectral lines of the hypothetical
element nebulium, which, according to his theory, contains four electrons ..."