H II region en · NOUN
Etymology
From a being region of space having H_(II) emission lines in its spectrum.
Meanings
- A large nebula of gas and plasma of glowing low density in which star formation has recently taken place.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| H-II region | alternative | lexicographic | |
| HII region | alternative | lexicographic | |
| H II regions | Number=Plur | lexicographic | |
| H_(II) region | alternative | lexicographic |
Relateds
H I region · HI region · H-I region · HII emission line · H-II emission line