Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A trans-Neptunian Kuiper belt object that orbits the Sun in the same time period as Pluto, making exactly two orbits for every three orbits of Neptune.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun astronomy Any of several
planetoids in theKuiper Belt that haveorbits similar toPluto in that they have aresonance of 3:2 with that ofNeptune
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
[Plut(o) + -ino, diminutive suff. (as in neutrino).]
from Wiktionary, Creative Commons Attribution/Share-Alike License
From Plut(o) + -ino, meaning “little Pluto” (compare neutrino); coined by David C. Jewitt et al.
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Examples
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Just to further muddy the waters: there is already the term “plutino,” which refers to Kuiper Belt Objects which have orbits similar to Pluto’s that is, in the same 3:2 resonance with Neptune’s orbit.
Pluton? « Whatever 2006
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