kuiperoid

K5U1I1P3E1R1O1I1D2
/ˈkaɪpəɹɔɪd/

noun

A Kuiper belt object, such as Pluto

Scrabble 16

Meanings

nounkuiperoid (plural kuiperoids)

plural kuiperoids · alternative Kuiperoid

  1. astronomyA Kuiper belt object, such as Pluto

    As of mid-1995, more than 20 objects, dubbed Kuiperoids, had been discovered within the Kuiper belt. The first one (other than Pluto) was spotted in 1992.

    1995, Terence Dickinson, Other worlds: a beginner's guide to planets and moons
    3 more examples

    I'm fascinated by the relatively small "ice balls" in the very outer part of the solar system. I have often wondered what bodies lay out there fainter than 17th magnitude, the limit of the plates I took at Lowell Observatory. May I suggest we call this new class of objects "Kuiperoids"?

    1994 December, Clyde Tombaugh, “The Last Word”, Letters to the Editor, in Sky & Telescope, page 8

    Complementary mechanisms of dust release from kuiperoids and Centaurs between Jupiter and Neptune can include impacts of large grains and the solar wind. Without discussing here the dust production by the above mechanisms ... we simply refer to observational data that indicate, for a number of kuiperoids and Centaurs, a steady cometary activity lasting for years

    2000 June 29, Gorkavyi, Ozernoy, Taidakova, Mather, “Distribution of dust from Kuiper belt objects”, in arXiv.org, arXiv:astro-ph/0006435v1

    We would not begin to guess how many more objects like Pluto (and Charon) could exist in the outskirts of our Solar System until the discovery of the first kuiperoid (1992 QB1) by David Jewitt and Jane Luu

    2012, Robert Tuttle, The Fourth Source, page 178

    Synonyms: Kuiper belt object

Synonyms & antonyms

nounA Kuiper belt object, such as Pluto

Origin

Blend of Kuiper belt + asteroid, a name suggested by Clyde Tombaugh, discoverer of Pluto.

Full word history & related roots →
Cite this entry
APA

kuiperoid. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/kuiperoid

MLA

“kuiperoid.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/kuiperoid. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “kuiperoid,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/kuiperoid.

Source: kuiperoid on Wiktionary, CC BY-SA 4.0.