enormous Lyman-alpha nebula

短语

词形变化

enormous Lyman-alpha nebulas 复数

别名

ELAN

释义与例句

n.
  1. 1.

    A large gas cloud (nebula) larger than galaxies, found in intergalactic space, which radiates with an emission spectrum containing 2.47 THz lines (Lyman-alpha lines).

    天文

词源

From enormous + Lyman alpha + nebula. From being a nebula with Lyman-alpha emissions that is larger than galaxies.

来源：wiktionary