sednoid

English

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.

Noun

sednoid (plural sednoids)

  1. (astronomy) 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.

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