Word.ws English Dictionary

protoplanetary nebula

protoplanetary nebula noun: a stage in stellar evolution when a star starts to shed its outer layers before coming a true planetary nebula.

Noun

protoplanetary nebula (plural protoplanetary nebulae or protoplanetary nebulas)

  1. A stage in stellar evolution when a star starts to shed its outer layers before coming a true planetary nebula.

Synonyms of protoplanetary nebula

Forms of protoplanetary nebula

pluralprotoplanetary nebulae
pluralprotoplanetary nebulas

Origin of protoplanetary nebula

From proto- + planetary nebula.

Questions about protoplanetary nebula

What does protoplanetary nebula mean?
Protoplanetary nebula means a stage in stellar evolution when a star starts to shed its outer layers before coming a true planetary nebula.
What part of speech is protoplanetary nebula?
Protoplanetary nebula is a noun.
What is the plural of protoplanetary nebula?
The plural of protoplanetary nebula is protoplanetary nebulae.

Words near protoplanetary nebula in the dictionary

  1. protoplanetary
  2. protoplanetary disc
  3. protoplanetary discs
  4. protoplanetary disk
  5. protoplanetary disks
  6. protoplanetary nebula
  7. protoplanetary nebulae
  8. protoplanetary nebulas
  9. protoplanetesimal
  10. protoplanetesimals
  11. protoplanets

Source and license

Adapted from Wiktionary: protoplanetary nebula (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “protoplanetary nebula.” Word.ws, https://word.ws/protoplanetary_nebula. Based on Wiktionary, CC BY-SA 4.0.