from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Any of the small icy bodies orbiting the sun in the Kuiper belt, generally having a diameter less than Pluto's. Pluto is a large Kuiper belt object that was probably captured in its present solar orbit by an encounter with the planet Neptune.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun astronomy A type of
trans-Neptunian object(TNO) (a certain type of minor planet) that has an orbit in the Kuiper belt (between 30-50 AU) with inclinationsconsistent with the ecliptic.
from The American Heritage® Dictionary of the English Language, 4th Edition
[After Gerard Kuiper, (1905–1973), Dutch-born American astronomer who speculated about the existence of such bodies.]
from Wiktionary, Creative Commons Attribution/Share-Alike License
Eponym after Gerard Kuiper, who theorized about the belt's existence.
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