Kuiper Belt Object Definition

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.

American Heritage

Synonyms:

Synonyms:
kbo

Other Word Forms of Kuiper Belt Object

Noun

Singular:

Kuiper belt object

Plural:

kuiper-belt-objects

Origin of Kuiper Belt Object

After Gerard Kuiper (1905–1973), Dutch-born American astronomer who speculated about the existence of such bodies

From American Heritage Dictionary of the English Language, 5th Edition
Eponym after Gerard Kuiper, who theorized about the belt's existence.

From Wiktionary