nebulium

n. [天]氰(一种假设的元素)

释义与例句

n.
  1. 1.

    A supposed chemical 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.

    𰚼

    废旧 不可数 天文 物理

词源

From nebula + -ium.

来源：wiktionary