Jisho

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Noun
1. plutinoAstronomy, etc. term
Wikipedia definition
2. PlutinoIn astronomy, a plutino is a trans-Neptunian object in 2:3 mean motion resonance with Neptune. For every 2 orbits that a plutino makes, Neptune orbits 3 times. Plutinos are named after Pluto, which follows an orbit trapped in the same resonance, with the Italian diminutive suffix -ino. The name refers only to the orbital resonance and does not imply common physical characteristics; it was invented to describe those bodies smaller than Pluto (hence the diminutive) following similar orbits.
Read “Plutino” on English Wikipedia
Read “冥王星族” on Japanese Wikipedia
Read “Plutino” on DBpedia

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