Meanings
preplanetary1
adjectivepreplanetary (not comparable)
alternative pre-planetary
- not comparableBefore the existence or formation of planets.
preplanetary2
adjectivepreplanetary (not comparable)
alternative pre-planetary
- not comparableRelating to a stage in the life of a red giant star or its preplanetary nebula during the star's final stages of life
Origin
preplanetary · adjective
From preplanetary nebula, from pre- + planetary nebula.
Full word history & related roots →Translations
Finnish esiplanetaarinen
- esiplanetaarinenbefore formation of planets
Polish preplanetarny
- preplanetarnybefore formation of planets
Cite this entry
APA
preplanetary. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/preplanetary
MLA
“preplanetary.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/preplanetary. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “preplanetary,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/preplanetary.
Source: preplanetary on Wiktionary, CC BY-SA 4.0.