sednoid

名词 n.

英文释义

名词 n.
  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.

词形变化

sednoids plural

词源

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.
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