Sednoid
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 A trans-Neptunian object of the inner Oort cloud, that is, one with a perihelion greater than 75 AU.
"Scientists are beginning to discover more sednoids thanks to better search efforts."
Example
More examples"Scientists are beginning to discover more sednoids thanks to better search efforts."
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.
Related phrases
More for "sednoid"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.