hycean

形容词 adj.

英文释义

形容词 adj.
  1. Having a water-based ocean that covers the entire planet, and an atmosphere rich in hydrogen. neologism,not-comparable
    — With densities between those of rocky super-Earths and more extended mini-Neptunes, Hycean planets can be optimal candidates in the search for exoplanetary habitability and may be abundant in the exoplanet population.

词源

Blend of hydrogen + ocean. Coined in 2021.
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