cis-Neptunian en · ADJ
Etymology
From cis- + Neptunian; compare trans-Neptunian.
Meanings
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(not-comparable) Relating to an astronomical body found within the orbit of Neptune.
Within the orbit of Neptune, cis-Neptunian bodies include the terrestrial and large gaseous planets, along with a variety of minor bodies: planetary moons, asteroids, and comets.
2018, Michael Perryman, The Exoplanet Handbook, Cambridge University Press, →ISBN, page 684: