Standard Lemma guide

sednoid

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

A trans-Neptunian object of the inner Oort cloud, that is, one with a perihelion greater than 75 AU.

Definition source: English Wiktionary via Wiktextract

Topics: astronomy, natural-sciences

Examples

  • Scientists are beginning to discover more sednoids thanks to better search efforts.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From Sedn(a) + -oid. In turn, from Inuktitut ᓴᓐᓇ (sanna, “Inuit goddess, the Mother of the Sea”). Named after the dwarf planet, the prototype of its class.

Across languages

Translations

4 source translations are retained for this English entry.

  • French: sednoïde — astronomy
  • German: Sednoid — astronomy
  • Polish: sednoida — astronomy
  • Turkish: sednoid — astronomy