Meanings
proper noun
- alternativeAlternative form of proto-Neptune
protoUranus and protoNeptune, orbiting outside the halo, will soon become unshielded as the disk evaporates from the outside in
2001, AP Boss, GW Wetherill, N Haghighipour, “Rapid Formation of Ice Giant Planets”, in Icarus, https://arxiv.org1 more example
Even with so much territory to rule and gather tribute from, protoUranus and protoNeptune grew slowly compared with Jupiter and Saturn.
2004, Mark Littmann, Planets Beyond: Discovering the Outer Solar System, page 253
Cite this entry
APA
protoNeptune. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/protoNeptune
MLA
“protoNeptune.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/protoNeptune. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “protoNeptune,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/protoNeptune.
Source: protoNeptune on Wiktionary, CC BY-SA 4.0.