preplanetary nebula en · NOUN
Etymology
From pre- + planetary nebula.
Meanings
- A stage in stellar evolution when a star starts to shed its outer layers before coming a true planetary nebula.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| preplanetary nebulae | Number=Plur | lexicographic | |
| preplanetary nebulas | Number=Plur | lexicographic |