Plural of Nebula
“Nebula” has two accepted plurals: “nebulae” and “nebulas.” Both are dictionary-recorded, including in the astronomical sense.
Both “nebulae” and “nebulas” are accepted plurals of “nebula.” Follow the terminology preferred in your scientific or editorial context.
Key details
Choose the right form
| Meaning / situation | Form / construction | Decision |
|---|---|---|
| one nebula | nebula | Use the singular form for one. |
| traditional Latin-derived plural | nebulae | Accepted plural. |
| regular English plural | nebulas | Also accepted. |
Quick tests
Meaning / construction test
Do you need the plural of “nebula”?
If yes: Use either “nebulae” or “nebulas,” following the terminology of your scientific or editorial context.
If no: Use singular “nebula” for one.
Caveat: Both plural forms are accepted; this is a variant/style choice, not a universal right-versus-wrong contrast.
Examples
The image shows one nebula.
One object takes the singular “nebula.”
The catalog labels several nebulae.
“Nebulae” is an accepted Latin-derived plural.
The article describes several nebulas.
“Nebulas” is also an accepted plural.
Further guidance
Core difference
Both “nebulae” and “nebulas” are accepted plural forms.
Fast Test
Use the form preferred by your publication or field and keep it consistent.
Usage Boundary
Do not treat the regular plural “nebulas” as automatically wrong simply because “nebulae” preserves the Latin pattern.
Sources and evidence
Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.
- Nebula — Cambridge Dictionary (opens in a new tab)Cambridge University Press · Direct dictionary evidence that “nebula” has accepted plurals “nebulae” and “nebulas.”