nebulium
[ nuh-byoo-lee-uh m ]
/ nəˈbyu li əm /
noun Astronomy.
a hypothetical element once thought to be present in emission nebulae because of certain unidentified spectral lines, now known to be forbidden transitions of oxygen and nitrogen ions.
Words nearby nebulium
nebris,
nebuchadnezzar,
nebula,
nebular hypothesis,
nebulated,
nebulium,
nebulize,
nebulizer,
nebulose,
nebulosity,
nebulosus
Example sentences from the Web for nebulium
The whole thing aglow with the green light of nebulium and blazing with the stars behind it.
Out Around Rigel |Robert H. Wilson