Meanings
protovenus1
- alternativeAlternative form of proto-Venus
Protovenus would have been about six hundred times more massive than they are and they would be essentially composed of gaseous H2 and He.
2013, Josip Kleczek, The Universe, page 2381 more example
This shows the variation in distance of Mercury from the Sun in AU against time measured in years for a three-body combination of the Sun-Mercury-protovenus. for the final hundred or ...
1985, JR Donnison, IP Williams, “Orbital stability during the early stages of planetary formation”, in Monthly Notices of the Royal Astronomical Society, academic.oup.com
protoVenus2
- alternativeAlternative form of proto-Venus
The major angular momentum was initially in the orbiting of the massive inner planets: protoMercury, protoVenus, and protoEarth.
2012, Robert J. Tuttle, The Fourth Source: Effects of Natural Nuclear Reactors, page 1012 more examples
If Mercury has once been a satellit of Venus, the falling wind could have swept away so much of protoVenus that it lost gravitational control, and Mercury became a planet.
1981, Fire of Life: The Smithsonian Book of the Sun, page 70For this reason, terms such as protoEarth, protoVenus etc. have no validity until there is a body whose mass is more than half that of the eventual planet.
2018, David A. Rothery, Neil McBride, Iain Gilmour, An Introduction to the Solar System, page 312
Cite this entry
protovenus. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/protovenus
“protovenus.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/protovenus. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “protovenus,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/protovenus.
Source: protovenus on Wiktionary, CC BY-SA 4.0.