Meanings
nounplanetule (plural planetules)
plural planetules
- A little planet.
At the surface of Mars, for instance, the gravity is only one third that at our own surface, at the moon one-sixth, and in the singular little planetules grouped between the orbits of Mars and Jupiter, probably not more than one-twentieth.
1836, William Daniel Conybeare, An Elementary Course of Theological Lectures, in Three Parts
Origin
- Latinplanetula
- Englishplanetule
From planet + -ule, ultimately from Latin planetula.
More words from Latin
Full word history & related roots →Cite this entry
APA
planetule. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/planetule
MLA
“planetule.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/planetule. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “planetule,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/planetule.
Source: planetule on Wiktionary, CC BY-SA 4.0.