Word.ws English Dictionary

preplanetary

preplanetary adjective: before the existence or formation of planets.

Adjective (1)

preplanetary (not comparable)

  1. Before the existence or formation of planets.

Adjective (2)

preplanetary (not comparable)

  1. Relating to a stage in the life of a red giant star or its preplanetary nebula during the star's final stages of life

Forms of preplanetary

alternative formpre-planetary

Origin of preplanetary

From pre- + planetary.

From preplanetary nebula, from pre- + planetary nebula.

Phrases with preplanetary

Questions about preplanetary

What does preplanetary mean?
Preplanetary means before the existence or formation of planets.
What part of speech is preplanetary?
Preplanetary is an adjective.

Words near preplanetary in the dictionary

  1. preplaces
  2. preplacing
  3. preplacodal
  4. preplacode
  5. preplan
  6. preplanetary
  7. preplanetary nebula
  8. preplanetary nebulae
  9. preplanetary nebulas
  10. preplanetesimal
  11. preplanetesimals

Source and license

Adapted from Wiktionary: preplanetary (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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