The story
From cis- + Neptunian; compare trans-Neptunian.
Etymology from Wiktionary, CC BY-SA 4.0.
cis-Neptunian
Today it means: Relating to an astronomical body found within the orbit of Neptune. Full definition →
Today it means: Relating to an astronomical body found within the orbit of Neptune. Full definition →
From cis- + Neptunian; compare trans-Neptunian.
Etymology from Wiktionary, CC BY-SA 4.0.